Answer:
Median height is selected
Explanation:
Stabilizing selection is a particular type of natural selection where the mean of the trait in the population stabilizes on non-extreme phenotypes, thereby favoring intermediate phenotypic variants. At genetic level, stabilizing selection is shaped by selective forces that push the distribution of the trait in the population toward the average (median trait), it is a condition that may happen when a population is completely adapted to its environment. Thus, stabilizing selection acts to purge the extreme phenotypic variants via purifying selection. Stabilizing selection is considered to be one of the most important mechanisms controlling the distribution of different phenotypes after many cycles of artificial selection, it s for that reason that breeders believe that this type of natural selection is the most common in nature.
Justin is a 24-month-old male with multiple food allergies, including milk, eggs, and peanuts. At six months old a cooking utensil that had been used to cook eggs touched his arm and his mother noticed a significant dermatological response. As a result, Justin’s pediatrician advised her to avoid eggs, cow’s milk, and peanuts in Justin’s diet until food allergy testing could be done at two years of age. Fortunately, Justin hasn’t had any negative reactions to soy milk. Food allergy testing has confirmed that Justin needs to continue to avoid cow’s milk and peanuts. His pediatrician plans to conduct food allergy testing annually and advises his mother that Justin will likely be able to outgrow the milk allergy. Justin is referred to a registered dietitian for an assessment of his growth and nutrition intake. His mother reports that he is able to feed himself and she has noticed no problems with chewing and swallowing. A 24-hour dietary recall shows Justin consumed the following foods:
Fortified soy milk (4 ounces), rice cereal, bananas, grilled soy-cheese sandwich, fortified soy milk (4 ounces), green beans, apricots, orange juice (8 ounces), apple slices, almond butter on toast, apple juice (8 ounces), roast turkey, baked potato, green peas, and fortified soy milk (4 ounces).
Date Weight Weight for age % Height Height for age % Weight for length %
12 months 23# a.____ 29" d.____ g.____
18 months 26# b.____ 31.5" e.____ h.____
24 months 29# c.____ 33.5" f.___ i.____
1) Complete the above table. Is Justin’s growth on track?
2) Does the diagnosis affect his nutritional needs? If so, how ?
Answer:
The correct answer is -
1. Based on height he is 50% and height he is 25%
2. The nutritional needs are normal due to the constant percentage in both height and weight throughout.
Explanation:
By the reference of the chart of growth rate presented by CDC,
These informations can be found-
Weight :
A= 50%
B=50%
C=50-75%
Height :
D=10-25%
E=25%
F=25%
Then the percentage of height by weight ratio
Height by weight%:
G=75-90%
H=75-90%
I=75-90%
Thus, the correct answer is -
1. Based on height he is 50% and height he is 25%
2. The nutritional needs are normal due to the constant percentage in both height and weight throughout.
What would happen to people who have an open wound and whose blood did not clot naturally?
Answer:
Because blood does not clot properly without enough clotting factor, any cut or injury carries the risk of excessive bleeding. In addition, people with hemophilia may suffer from internal bleeding that can damage joints, organs, and tissues over time.
Explanation:
Glycogen Synthase Kinase:_______.
A. Will only phosphorylate glycogen synthase (GS) after GS has been phosphorylated by casein kinase.
B. Phosphorylates glycogen phosphorylase
C. Phosphorlyates Casein Kinase.
D. Is activated by the insulin signaling pathway.
Answer:
A. Will only phosphorylate glycogen synthase (GS) after GS has been phosphorylated by casein kinase.
Explanation:
Glycogen synthase kinase (GSK) is a type of enzyme capable of phosphorylating serine and threonine residues on the glycogen synthase (GS). The insulin hormone activates the synthesis of glycogen by dephosphorylating GS, but it is a mechanism that depends on the previous phosphorylation of GS by Casein Kinase (CK). GSK is also known to phosphorylate the insulin receptor (IRS), and thus controlling glucose metabolism.
Which rock is an example of an organic sedimentary rock?
O iron ore
O rock salt
O limestone
O sandstone
Answer:
Hello Again!!
Your answer is C. LIMESTONE!
Explanation:
Limestone is formed Calcium Carbonate (CaCO3) and a mixture of othe organic matters like shells, coral and waste...
HOPE THIS HELPS!
itsMATT04
Limestone is an example of an organic sedimentary rock.
What is organic sedimentary rock?These are organic-rich sedimentary rock which contains significant amount of organic carbon.
Limestone chemically is calcium carbonate, which contains organic carbon.Rock salt is an inorganic sedimentary rock.Sand stone is a clastic sedimentary rock which is formed by the compact sand granules.Iron ore is a source of minerals and iron.Hence, here limestone is the only organic sedimentary rock.
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Select the correct answer.
Which statement best compares the role of meiosis in a unicellular and a multicellular organisms?
OA.
Meiosis is the mechanism used for producing somatic cells in unicellular as well as multicellular
OB.
Meiosis is the mechanism used for producing gametes in unicellular organisms and somatic cells
O c.
Meiosis is the mechanism used for producing gametes in multicellular organisms whereas it doe
unicellular organisms.
Reset
Next
Answer:
Meiosis is the mechanism used for producing gametes in multicellular organisms whereas it does
unicellular organisms.
Explanation:
Meiosis is a kind of cell division used mainly by sexually-reproducing organisms, whether unicellular or multicellular, to produce gametes i.e. meiosis only occurs during gamete formation.
In sexual reproduction, gametes must fuse in a process called fertilization. This gametes, however, must each possess half of the chromosome number of the individual organism. Meiosis is the process that ensures that the chromosome number of the gametes is reduced by half i.e. diploid (2n) to haploid (n).
Therefore, meiosis is the process of gamete formation in sexually-reproducing unicellular or multicellular organisms.
Which reason best explains why bacteria are good at causing infections in other organisms? It would not be able to divide. Bacteria are transmitted easily and reproduce quickly. Bacteria evolve slowly as they pass on genetic information. Bacteria are easily killed by a host’s immune system or antibiotics.
Answer:
Bacteria are transmitted easily and reproduce quickly
Explanation:
Bacteria are organisms that have a single cell. The process of reproduction of the bacteria is binary fission. The parent cell divides into the daughter cell. The DNA of the parent cell gets copied and gets divided by forming the identical daughter cells. Some bacteria have nutritional values in them while the others are infectious. They can divide at an alarming rate if they receive favorable conditions. Also, they are easily communicable and transmittable. It is because of this reason that the bacteria are good at causing infections in other organisms.
2. If a nucleus has 8 chromosomes, how many chromosomes will be present after Telophase I? 3. What advantage does crossing-over have in reproduction? 6. Compare and contrast spermatogenesis and oogenesis (where do they occur, how many gametes are formed, when do they develop, etc):
Answer:
Telophase I: 8 chromosomes composed of two sister chromatids
Crossing over refers to the mechanism of recombination, this process being characterized in that increases the genetic variation
Spermatogenesis refers to the mechanism of formation of male gametes (sperms), while oogenesis is the process of formation of female gametes (oocytes)
Explanation:
Telophase I is the final step in meiosis I. During telophase I, the nuclear membrane is formed around the decondensed set of chromosomes and the nucleoli reappear.
Spermatogenesis refers to the process by which haploid male germ cells (sperms) are generated within the seminiferous tubules in the testis, while oogenesis refers to the process of differentiation of the female egg cells (ova or oocytes) in the ovaries. Spermatogenesis is known to produce small and motile spermatic cells, while oogenesis is known to produce bigger non-motile oocytes.
The spread of cancer cells from one site to others in the body is known as _____.
Answer:
metastasis
Explanation:
Metastasis is the process in which cancer cells break away from the place where they first formed and travel through the bloodstream to other parts of the body where they form a new tumor.
Hope that helps.
Help Res
Is there a symbiotic
relationship between
plants and water? If so,
what effect does it have on
their ecosystem?
A. Yes, there is a symbiotic
relationship that is beneficial to both.
B. No, this would not be a symbiotic
relationship
C. Yes, there is a symbiotic
relationship that is beneficial for the
plant but harmful to the water.
Answer: i think its a
Explanation:
One characteristic of fungi is that they have a cell wall made of chitin. What are two other characteristics of fungi? Produce spores and heterotrophic Contain membrane-bound nucleus and photosynthetic Heterotrophic and produce seeds Absorb food and photosynthetic
Answer:
Produce spores and are heterotrophic
Explanation:
All animals and fungi are heterotrophic and fungi produce spores which is how they reproduce.
Answer:
Produce spores and heterotrophic
RNA helps turn DNA into proteins by: (select all that apply) Group of answer choices Moving genetic code from the nucleus to a ribosome forming part of the ribosome Carrying amino acids to a ribosome controlling splicing by marking intron and exon sequences g
Answer:
Moving genetic code from the nucleus to a ribosome
forming part of the ribosome
Carrying amino acids to a ribosome
controlling splicing by marking intron and exon sequences
Explanation:
Ribonucleic acid (RNA) is a key molecule that has diverse biological functions. In the first place, the messenger RNA (mRNA) is an RNA version whose function is to transmit the code from the DNA within the nucleus to the cytoplasm during protein synthesis. Second, the ribosomal ribonucleic acid (rRNA) represents a structural component of ribosomes where proteins are synthesized. Third, the transfer ribonucleic acids (tRNAs) represent another important class of RNA version that attach amino acids to transport them to the ribosomes in order to decode an mRNA into a protein. Finally, RNA splicing is the processing of RNA to eliminate non-coding introns from the precursor mRNA (pre-mRNA) molecule to form the final mature mRNA transcript.
How is the endosymbiosis theory used to support the emergence of eukaryota
Answer:
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.
Answer:
tho mpal u moan nice not lock yt?
1. One important feature of DNA is that it can be accurately copied and inherited from one generation to the next. Imagine if DNA was NOT accurately replicated. What errors could occur and how would they affect the offspring in the next generation
Answer:
Explanation:
If DNA is not accurately replicated it can lead to mutation. Mutation is a genetic disorder that occur when a change occur and affect the genome of an organism. It can be result in frameshift mutation shifting nucleotide arrangement.
When DNA is not accurately replicated, it could lead to formation of an entirely new protein different from the original which has a different function this could lead to a form of disorder in the offspring. The effect of this disorder depends on it severity.
In melosis, the homologous chromosomes are side by side. Are they side by side in mitosis?
what is self pollination
Answer:
When pollen from the pollen part of the flower (the anther) gets its way into the germination part (the stigma) of the SAME plant.
It's kinda weird because many plants have both "male" and "female" seexy bits on the same flower.
Explanation:
Self-pollination is when pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperm-style plants).
There are two types of self-pollination: in autogamy, pollen is transferred to the stigma of the same flower; in geitonogamy, pollen is transferred from the pollen part (anther) of one flower to the germination part (stigma/ovule) of another flower on the same flowering plant.
Answer:
This is the pollination of flower by pollen grains from the same flower on the same plant.
Explanation: OR:
This is also when pollen from the same plant arrives at the stigma of a flower or at the OVULE.
Many plants that can be self pollinating can also be cross pollinating.
Examples of self pollinating plants are: wheat, tomatoes, barley, e.t.c.
This is also the transfer of pollen from the anther to the stigma of the same flower or the flower of the plant with the same clone.
Hope all these helps.
If the regulator protein of the arginine regulon is mutated such that it can not bind arginine, which of the following describes the phenotype of the bacterium with such a mutation?
a) inducible
b) repressible
c) uninducible
d) constitutive
e) none of these
Answer:
The answer is a repressive mutation (the term is similar to b option).
Explanation:
In bacteria, the arginine regulon consists of a dozen genes required during the transport and biosynthesis of arginine (arg genes), these genes are controlled as a single unit. In prokaryotes, the concept of regulon is similar to the operon; however, an operon is composed of a group of genes linearly localized on bacterial chromosome, while a regulon can be formed by genes localized in different chromosome regions. Moreover, in eukaryotes, this concept is also used in order to indicate a set of linked genes that are regulated by the same regulatory gene sequence. A repressive mutation in a positive regulator of the arg regulon may trigger the inhibition of arg genes by affecting their ability to bind arginine.
what causes metamorphoic rocks to form from existing rocks
Answer:
metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
Question 8 (5 points)
Which of the following best describes the mechanism by anti depressant
medications function?
Provide a positive rush of the neurotransmitter dopamin-
Made of artificial neurotransmitters that generate exciter
O Allow the body to prochyce more neurotransmitters such a
serotonin
Answer:
Help maintain a balance in neurotransmitters such as serotonin
Explanation:
Anti-depressant medications help the body maintain a balanced, homeostasis level of neurotransmitters, often serotonin.
While sitting at your desk, you drop your pencil onto the floor. You bend over to pick up the pencil. In order to straighten up and continue your exam you must use which muscles?
Answer:
Deltoid muscle
Trapezius muscle
Carpel muscle
Quadriceps
Hamstrings
Glutes
Abdominal muscles
Students today, leaders tomorrow speech
Answer:
The young blood should understand the value of time. It is very precious and never waste it in bad things. Young blood should do everything to complete their dreams and also serve to their country.
Explanation:
The young generation is the future of any country. There role is much important than others. They are the essential and integral part of the society and we can not imagine a country or a society without a young blood. So it is rightly said that todays generation or young blood will be the future of a country. They are the driving force and make government to make the their decision at prior. Young blood is the future of a society or community can change the country. Thus they should live in hope and to participate in building the future of the country. They should be honest, good and hard worker and should contribute to their country service. Young blood is the backbone of a country that can change the value of a country. Physical education and sports can teach a lot to them.
what is a type of emigration where offspring move
away from their parents.
Answer:Dispersal
Explanation: This refers to offspring moving away from their parents. This prevents the offspring from competing with the parents for resources such as light or water. For example, dandelion seeds have “parachutes.” They allow the wind to carry the seeds far from the parents
______ is a section of DNA that is required to make a protein. The section of DNA undergoes_______ in order to synthesize a protein. As amino acids are put together, their ______determines the way in which they will fold into a three-dimensional structure. It is the________ of the folded structure that determines its function.
A sequence is a section of DNA that is required to make a protein. The section of DNA undergoes transcription in order to synthesize a protein. As amino acids are put together, their order determines the way in which they will fold into a three-dimensional structure. It is the shape of the folded structure that determines its function.
Gene is a section of DNA that is required to make a protein. The section of DNA undergoes translation in order to synthesize a protein. As amino acids are put together, their sequence determines the way in which they will fold into a three-dimensional structure.
What is a gene?A gene is a segment of DNA that is required to produce one protein. Because they code for proteins made up of hundreds or thousands of amino acids, genes are typically hundreds or thousands of base pairs long.
Translation is the process by which ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins in molecular biology and genetics.
The amino acid sequence of a protein drives the folding and intramolecular bonding of the linear amino acid chain, that will determines the protein's unique three-dimensional structure.
The folded structure's conformation determines its function, which is directly dependent on the protein's linear amino acid sequence.
Thus, it can be concluded that, section of DNA referred to as gene is involved in protein synthesis, i.e., translation. In this amino acid sequence will decide the type of fold.
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Ms. Fisher is a 68-year-old woman with the classic symptoms of gallbladder disease. She is diagnosed with gallstones and is scheduled for surgery in 2 weeks . She asks you about the cause of gallstones and why she would develop them. How would you respond to her?
Answer: I will respond as this;
Gall stones develop from the chemical makeup imbalance of the bile inside the gall bladder which can increase in the levels of cholesterol, and cholesterol levels is increase, the excess form into stones.
Mrs Fisher can develop gall stones because she is 40 years and above and she is a female. Age and sex are the risk factors of gall stones
Explanation:
Gallstones are solid particles that are developed from bike cholesterol or bilrubin build up.
It Is caused by can increase in the levels of cholesterol, and cholesterol levels is increase, the excess form into stones.
Symptoms include .
The most common symptom is pain in the right upper part of the abdomen.
nausea and vomiting,
fever,
indigestion, belching, bloating,
intolerance for fatty or greasy foods, and
jaundice (yellowing
Mrs Fisher can develop gall stones because she is 40 years and above and she is a female. Age and sex are the risk factors of gall stones.
Women that had have children also are at risk of having gall stones.
The most effective treatment is surgical removal of the gallbladder, or cholecystectomy
7. Wha
9. Marfan syndrome is an inherited condition that affects the connective tissue, resulting in
unusually long bones and spinal curvature, as well as vision, cardiac, and respiratory
problems. The syndrome tends to become increasingly severe over time. The following
pedigree shows inheritance of Marfan syndrome in a multigenerational famil (5)y.
8. Wh
5
9. Tra
Th
the
III
Be
us
wi
a) How is this syndrome inherited (dominant, recessive or sex-linked)?
2
b) Can you determine individual 114's genotype? Explain.
b.
с
c) Individual III and I12 are considering having another child. What is the probability that
this child will have Marfan syndrome? Explain using a Punnett square.
Answer:
The correct answers are :
a) syndrome Could be autosomal recessive or dominant
b) If it is autosomal recessive - no ,
and if it is autosomal dominant - yes, (II-4) - Aa
c) probability of the another child :
Autosomal recessive: Aa x aa 50%
Autosomal dominant: aa x Aa 50%
Explanation:
a) Marfan syndrome could be inherited by the autosomal recessive or dominant pattern on the basis of following characters according the pedigree gives:
- transmitted by anyone regardless of sex male or female
- characters should not skip generations
- A cross between affected person and an normal person should produce approximately half of the affected offspring.
b) Assuming that autosomal dominant than there is two possibilities :
1) in case of I 2 genotype is heterozygous which means it is Aa which will produce Aa Aa aa and aa with crossing with aa as per pedigree however it is incorrect according the offspring given in II.
2) If I 2 is AA- then offspring will be Aa, Aa, Aa and Aa. which is correct according the pedigree.
thus, the answer is - Aa
c) the punnet square as per question is :
II2 - Aa × II1 - aa
A a
a Aa aa
a Aa aa
similar with autosomal recessive
thus, the correct answer is 2 out of 4 that is 50%
what happens when liquid is heated? class five
Explanation:
when a liquid is heated it will break . The molecules there will be vibration of molecules and then they will loosen up(the molecules that is) and then there will be a lot of heat which will remain constant and then the heat will make the liquid to evaporate (which is known as boiling point)
Since viruses are typically 20-200nm in diameter.. what is the best microscope to view them?
Answer:
electron microscope
Explanation:
Due to their extremely small size, the best microscope to view viruses would be the electron microscope.
The electron microscope has the capability to create resolved images of extremely small objects by utilizing electrons as a source of light instead of the visible light photon that is typical of light microscopes.
There are different two types of electron microscopes:
the scanning electron microscope, andthe transmission electron microscope.A typical scanning electron microscope creates an image of an object by detecting knock-off electrons from the object, whereas a transmission electron microscope uses electrons that pass through the object to create the image of the object.
DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Instead, DDT is largely useless against many insects because they are resistant. Propose a hypothesis as to why these organisms have become resistant to the chemical.
Answer:
None of the individual insects should have possessed genomes that made them resistant to DDT.
Explanation:
Pesticides such as DDT have been considered one of the best way to kill insects in the past. But with time, farmers have observed that this is not an authentic method. This is because the insects can gain resistance to the pests if they are exposed to the pesticide again and again. Even they could transmit these resistant genes in their offsprings. Hence, DDT will become useless against insects over time.
Which one of the following statements about secreted proteins is incorrect? Secreted proteins: are likely to have received N-linked glycosylation in the rough ER. are synthesized on membrane-bound ribosomes, not free cytosolic ribosomes. that are constitutively expressed are exported as they are prepared, as opposed to being released as a response to a signal. cannot be exported into the extracellular space until the vesicle they are in fuses with the plasma membrane. travel directly from the rough endoplasmic reticulum into the trans face of the Golgi Apparatus.
Answer:
they travel directly from the rough endoplasmic reticulum into the trans face of the golgi apparatus
O Consider the diagram that depicts the lysogenic and lytic cycles. The steps of the lysogenic cycle are shown. In Step A, attachment and entry occurs. In step B, the provirus is formed. In step C, the cell begins to divide. In step D, the provirus leaves. In step E, the virus is replicated and assembled. In step F, lysis and release of the virus occurs. In which step of the diagram is the provirus formed? step A step B step E step F
The correct answer is Step B
Explanation:
The lysogenic and lytic cycles are processes of replication for viruses. These two processes involve different steps. In general, the first stage involves attachment and penetration as the virus enters the host cell. This step is followed by the provirus, which means the genome of the virus is integrated into the DNA of the cell, this step is also mentioned in the model as part of step B "the provirus is formed". Moreover, the formation of the provirus is key as the nutrients of the host cell and genome are used for replication. Thus, in the diagram, the provirus is formed in step B.
Answer:
step b on edge is your answer
Explanation:
can i get a brainliest?
A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with balls stacked near its bottom. How is energy related to the change of state represented by the model? Atoms gain energy as a gas changes to a solid. Atoms gain energy as a gas changes to a liquid. Atoms lose energy as a gas changes to a solid. Atoms lose energy as a gas changes to a liquid.
Answer:
C. Atoms lose energy as a gas changes to a solid.
Explanation:
Physical changes of matter take place by adding or removing energy from the matter.
In the given images, The left cylindrical is showing gas phase while the right cylindrical is showing a solid phase.
The process of conversion of gas into solid is called deposition. Deposition process takes place when atoms lose their energy and have high kinetic energy so they directly convert into solid and not into liquid.
Hence, the correct option is "C".
Answer:
c i took the quiz
Explanation: