Complete question:
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Answer:
For the twist trait: The mutant allele is dominant to its corresponding wild-type allele For the forked trait: the mutant allele is dominant to its corresponding wild-type allele For the pale trait: The mutant allele is neither dominant nor completely recessive to its corresponding wild-type alleleExplanation:
Cross 1: twisted x wild-type ----> Pure linesParentals) TT x tt
F1) twisted leaves, Tt. ---> Heterozygous
Parentals) Tt x Tt
Punnett square) T t
T TT Tt
t Tt tt
F2) 53 twisted, 18 wild-type
Total number of individuals in the F2 = 53 + 18 = 71
71 plants -------- 100% of the F2
53 twisted------X = 75% TT + Tt
18 wild-type----X = 25% tt
Phenotypic ratio 3:1
The phenotype of the F1 and F2 progeny tells us that the twist trait is dominant over the wild type. The fact that the whole F1 generation was twisted is enough information to assume that the wild type is recessive and the twisted is dominant. Also, the phenotypic ratio of the F2 corroborates this assumption.
Cross 2: forked x wild-type ---> Pure LinesParentals) FF x ff
F1) 100% forked, Ff----> Heterozygous
Parentals) Ff x Ff
Punnett square) F f
F FF Ff
f Ff ff
F2) 49 forked and 16 wild-type plants
Total number of individuals in the F2 = 49 + 16 = 65
65 plants -------- 100% of the F2
49 forked------X = 75% FF + Ff
16 wild-type----X = 25% ff
Phenotypic ratio 3:1
The phenotype of the F1 and F2 progeny tells us that the twist trait is dominant over the wild type. The fact that the whole F1 generation was forked is enough information to assume that the wild type is recessive and the forked is dominant. Also, the phenotypic ratio of the F2 corroborates this assumption.
Cross 3: pale x wild-type ---> Pure linesParentals) PP x pp
F1) 100% Pp, intermediate color.
Parentals) Pp x Pp
Punnett square) P p
P PP Pp
p Pp pp
F2) 34 intermediate, 17 wild-types, and 16 pale.
Total number of individuals in the F2 = 34 + 17 + 16 = 67
67 plants -------------- 100% of the F2
34 intermediate ------X = 51% Pp
17 wild-type-------------X = 25% pp
16 pale -------------------X = 24% PP
Phenotypic ratio 1:2:1
The phenotype of the F1 and F2 progeny tells us that the pale trait is not dominant neither recessive to the wild type. The fact that the whole F1 generation was intermediate is enough information to assume that none of the traits dominates over the other. This is a case of incomplete dominance. The heterozygous individual express an intermediate phenotype between both the parentals´ one. Also, the phenotypic ratio of the F2 corroborates this assumption.
What are the characteristics of a multi celled organism
Answer:
Multicellular organisms are made of more than one cell and are complex organisms.
They are visible to the naked eye.
They possess distinct organs and organ systems.
They are eukaryotes, i.e., they contain membrane-bound structures.
Their cells exhibit division of labor.
Their size increases with the number of cells in an organism
Explanation:
We’re you able to place some events within the periodic table with just a single clue
Explanation:
is that a personal question, or on a quiz or something?
Which letter identifies a fringing reef?
Answer: letter D
Explanation: because if you can see it is real small so it means it is a fringing reef and its the first mountain which leaving x the fludding if you put them in order it would be YZX
Answer:
D
Explanation:
Which of the following observations would support the claim that it is a plant cell rather than an animal cell?
It has a nucleus.
(Choice B)
It is round in shape.
(Choice C)
It has a cell membrane.
(Choice D)
It has chloroplasts.
32. An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to a. make life on land difficult for aerobic organisms. b. change the atmosphere from oxidizing to reducing. c. make it easier to maintain reduced molecules. d. cause iron in ocean water and terrestrial rocks to rust (oxidize). e. prevent the formation of an ozone layer.
Answer:
d. cause iron in ocean water and terrestrial rocks to rust (oxidize)
Explanation:
The Great Oxygenation Event (GOE) refers to the introduction of huge amounts of free oxygen into the atmosphere. This phenomenon was caused by photosynthetic cyanobacteria during the Paleoproterozoic, i.e., 2.5–2.2 billion years ago. During this period, oxidized iron minerals appeared in the soil and also were deposited on the deep ocean floor due to reactions with oxygen in the seawater from oceans. Moreover, during the Devonian (approximately 410- 360 million years ago), land plants greened the continents and it had brought higher levels of atmospheric oxygen, thereby increasing the amount of oxidized iron in the soil and rocks.
What three traits are used to classify organisms?
A
Cell type, how they create energy, number of cells they have
B
Cell type, if they're living or dead, the number of organs they have
С
How they create energy, how many years they live, how big they are
D
The number of cells they have, the number of years they live, the number of
offspring they produce
Answer:
Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.
Telling Them Apart Suggest a way to distinguish between the two elements in each of the following pairs.
A. Bacterial cells; archaeal cells
B. Rough ER; smooth ER
C. Animal peroxisomes; leaf peroxisomes
D. Peroxisomes; lysosomes
E. Viruses; viroids
F. Polio virus; herpes simplex virus
G. Eukaryotic ribosomes; bacterial ribosomes
Answer:
A. presence or absence of phytanyl groups linked to glycerol
B. presence or absence of ribosomes
C. presence or absence of enzymes involved in photorespiration
D. presence or absence of catalase
E. presence or absence of coat proteins
F: Poliovirus's genetic material consists of RNA, while HSV's genetic material consists of double-stranded DNA
G. eukaryotic ribosomes and prokaryotic ribosomes have different sedimentation coefficients
Explanation:
Bacteria and Archaea are both prokaryotic organisms, but they have a different composition in their cell membranes. Archaeal membranes contain phytanyl groups linked to glycerol, while bacterial membranes contain fatty acids linked to glycerol. The rough endoplasmic reticulum (RER) has ribosomes (i.e., organelles that act to synthesize proteins), while the smooth endoplasmic reticulum lacks ribosomes. The leaf peroxisomes contain enzymes exclusively involved in photorespiration such as glycolate oxidase (GLO), which lacks in animal peroxisomes. Moreover, peroxisomes contain catalase, an enzyme that decomposes hydrogen peroxide (H2O2) to convert it into water, while lysosomes contain hydrolytic enzymes such as, for example, cathepsin proteases that degrade proteins. Viruses are composed of nucleic acids (either DNA and RNA) and coat proteins (capsids) while viroids consist only of RNA. Poliovirus is an Enterovirus (Picornaviridae family) whose genetic material consists of a single-stranded positive-sense RNA genome, while the genetic material of the Herpes Simplex Virus (Herpesviridae family) is double-stranded DNA. Finally, eukaryotic ribosomes have different sedimentation coefficients than their prokaryotic counterparts: prokaryotes have 70S ribosomes while eukaryotes contain larger 80S ribosomes.
A pea plant with purple flowers and green pods is crossed with a plant that has white flowers and yellow pods.All the offspring have purple flowers and green pods .If two of these F1 are crossed what phenotypes will be seen in the F2 generation
Answer:
in the next generation 75% of the plants will have purple flowers and 25 percent will have white flowers
Also 75% of the flowers will have green pods and 25% of the flowers will have yellow pods
Explanation:
Which of the following is a good source of vitamin A?
Explanation:
the ki composed of vitamin is bone is not decompose and not paralyzed not hard attack in your body and not attack in your anytime of the position Vitamin a food is source of client heat food
Answer: yams
Explanation:
Guys please help
Plate Tectonics: Question 5
Which of the following supports the concept of continental drift? (Select
the 3 best options)
Choose all that apply:
Seafloor spreading
Rifting
Subduction
Glaciation
This is another one please help anyone I am begging i also posted another one check my account please and help me out
Which location has the warmer air temperature: Recife or Lima? Why?
Answer:
Recife has warmer air temperature because it is closer to the equator
Answer:Recife has the warmer air temperature
Explanation:Recife has the warmer air temperature.The first reason is that Recife,Brazil is closer to the equator than Lima,Peru which means Recife will receive more energy from the sun.Another reason is that the ocean currents that pass both locations have different origin.The current that passes Recife originated near the equator so that causes it to bring lots of energy causing the air temperature of Recife to be high and warm.The current that passes Lima originated near the South Pole so that causes it to bring less energy.Also Lima,Peru has upwelling as we see in the map and that also affects Lima,Peru to have colder air temperature
Olive oil contains unsaturated fat. It is a liquid at room temperature because
1)
the fatty acids do not contain carbon-to-carbon double bonds.
2)
carbon-to-carbon triple bonds exist within the fatty acids.
3)
the fatty acids are packed very tightly together.
4)
carbon-to-carbon double bonds are found within the glycerol.
5)
carbon-to-carbon double bonds exist within the fatty acids.
Answer:
4 or 5
Explanation:
Olive oil contains monounsaturated fatty acids (MUFAs), which have one unsaturated carbon bond in their chemical composition. MUFAs are typically liquid at room temperature.
Name three types of cells found in the human body. Where are they found and what are their functions?
Answer:
red blood cells (erythrocytes)
skin cells.
neurons (nerve cells)
fat cells.
Explanation:
red blood cells (erythrocytes)
skin cells.
neurons (nerve cells)
fat cells.
Make the mRNA strand that would be made from this DNA
CTT CGA TGA ATT CCA GCC CTC CTT TTG ATC CTT CCA CCT AGC ATC CGA TTG CTA ACT GTA CGC ATC
Answer:
GAA GCT ACT TAA GGT CGG GAG GAA AAC TAG GAA GGT GGA TCG TAG GCT AAC GAT TGA CAT GCG TAG
Explanation:
The purpose of studying the insects at a crime scene is to help establish _____.
the postmortem interval
the identity of the suspect
the identity of murder weapon
the way the person died
Answer:
the identity of the suspect
Explanation:
Hope you like it.
Answer:
the postmortem interval.
Explanation:
I'm guessing because none of the others make sense to me.
What do you think?
Analogy and homology are important concepts used in comparing species. Traits are homologous if they are derived, evolutionarily and developmentally, from the same source structure. Traits are analogous if they have similar functions but are derived, evolutionarily and developmentally, from different source structures. A classic example of analogous structures is insect wings and bat wings. Which of the following pairs of structures are analogous and which are homologous?
a. Dorsal fins of porpoise and a salmon
b. Flippers of porpoise and pectoral fins (front fins) of salmon
c. Joined leg of ladybird beetle and a robin
d. Rhesus monkey's tail and human's coccyx
e. Bright red bracts of poinsettia and green leaves of rose
f. Red bracts on a poinsettia and red petals on rose
Answer:
a. analogous
b. homologous
c. analogous
d. homologous
e. homologous
f. homologous
Explanation:
a. Analogous. Porpoises are mammals while salmon are fish. In this case, fins are analogous structures that evolved separately in both groups.
b. Homologous. Pectoral fins evolved from the forearms of tetrapods, and early tetrapods evolved from fish.
c. Analogous. These structures evolved independently through convergent evolution in both groups.
d. Homologous. They are homologous structures that were inherited from a common ancestor (primates).
e. Homologous. Bright red bracts (modified leaves) of poinsettia and green leaves of rose share a common ancestor (i.e., angiosperms).
f. Homologous. They are homologous structures that were inherited from a common ancestor (i.e., angiosperms).
RIGHT ANSWER GETS 98 POINTS
Answer:
The first fish
Explanation:
List the 6 kingdoms of living things, and describe what is found in each kingdom.
Answer:
Archaebacteria. Archaebacteria are the most recent addition to the kingdoms of organisms. ...
Eubacteria. Eubacteria are also single-celled bacterial organisms. ...
Fungi. ...
Protista. ...
Plants. ...
Animals.
What primary components of Earth's atmosphere do plants modify through
photosynthesis and respiration?
Answer:
carbon dioxide and oxygen
Explanation:
in photosynthesis, plants take in co2 from the atmosphere and release oxygen.
Jack Rogers developed chest pain and difficulty breathing. He has also been coughing up thick, blood-tinged sputum. A chest x-ray shows an ill-defined mass. A diagnostic bronchoscopy of one lung is performed and a specimen of the endobronchial mass is taken. The pathology report comes back positive for primary cancer of upper lobe. One week later, a lobectomy is performed. Code both procedures.
Answer:
The correct answer is -
CPT: 31625
ICD10: r07.9
ICD9: 786.50
Explanation:
A 5 digit code in most of the time numbers and assigned to various medical procedures and medical action specifically. The surgical or endoscopy procedures on the Bronchi and trachea of an individual is code for 31625.
"The International Classification of Diseases Clinical Modification" 9 or 10 is also known as ICD 9 or ICD 10 is a list of codes meant for the specific disease and medical procedures and symptoms or findings. The symptoms of chest pain for unknown reasons are code in icd10: r07.9
and icd9: 786.50.
Code both procedures:
CPT: 31625ICD10: r07.9ICD9: 786.5What are codes for medical procedures?Current Procedural Terminology, generally known as CPT, guides a set of medical codes used by medics, allied health professionals, nonphysician practitioners, hospitals, outpatient facilities, and laboratories to describe the strategies and services they achieve.
Thus, CPT: 31625, ICD10: r07.9, and ICD9: 786.5 are the codes.
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The mixing of fats with water, assisted by molecules that have both nonpolar and polar ends, is called
Answer:
The mixing of fats with water, assisted by molecules that have both nonpolar and polar ends, is called emulsification
Hope that helps!
consider your knowledge about the cell membrane and check all of the true statements below. Check All That Apply Cell membranes are present in only two of the three domains of life.Cell membranes are present in only two of the three domains of life. In water, phospholipids spontaneously arrange into a bilayer.In water, phospholipids spontaneously arrange into a bilayer. The area within a phospholipid bilayer, near the fatty acid tails, is hydrophilic.The area within a phospholipid bilayer, near the fatty acid tails, is hydrophilic. Steroids in cell membranes allow the membrane to be more fluid.Steroids in cell membranes allow the membrane to be more fluid. Phospholipid bilayers surround all eukaryotic cells.Phospholipid bilayers surround all eukaryotic cells. Membrane proteins offer structural support to the membrane but have no other function. Membrane proteins offer structural support to the membrane but have no other function. Both plant and animal cell membranes are considered fluid mosaics.
Answer:
- In water, phospholipids spontaneously arrange into a bilayer
- Steroids in cell membranes allow the membrane to be more fluid
- Phospholipid bilayers surround all eukaryotic cells
- Both plant and animal cell membranes are considered fluid mosaics
Explanation:
All living things (i.e.. both eukaryotic and eukaryotic organisms) are composed of cells, and all cells have cell membranes. In an aqueous environment, phospholipids spontaneously form bilayers: hydrophilic heads of phospholipids face the water environment at the surface of the bilayer, while hydrophobic fatty acid chains are shielded from the water in the interior. Steroids are lipids that intercalate into the bilayer of the cell plasma membrane, reducing the fluidity of the membrane. Integral membrane proteins may have different biological roles. For example, permeases are integral membrane proteins that facilitate the diffusion of certain molecules (e.g., glucose) across the cell membrane by passive transport. Both plant and animal cell membranes are considered fluid mosaics where different types of molecules (e.g., phospholipids, cholesterol, proteins, etc) are constantly moving across the membrane.
T or F : some enzymes cut double stranded DNA in a way that leaves a single stranded condition known as a “sticky end”
True or false
one evening you see a crescent shaped moon that looks very narrow. a couple nights later you notice if again but it looks thicker. which phase is it in?
If one sees a crescent-shaped moon that looks very narrow one evening, and a couple of nights later one notices it again, but it looks thicker, then the moon is in the waxing phase as in option A, which is leading to the first quarter phase.
What are the different moon phases?The waxing crescent phase is the phase of the moon that occurs after the new moon phase and before the first quarter phase, where the illuminated part of the moon visible from earth gradually increases in size, and the moon looks narrower on the first evening and thicker on the second evening because the angle between the sun, Earth, and the moon is changing.
Hence, one sees a crescent-shaped moon that looks very narrow one evening, and a couple of nights later one notices it again, but it looks thicker; then the moon is in the waxing phase as present in option A.
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The question is incomplete, the complete question is below,
one evening you see a crescent shaped moon that looks very narrow. a couple nights later you notice if again but it looks thicker. which phase is it in?
A) waxing phase
B) dark phase
C) full moon
13. Which DNA strand can base pair with A-T-G-C-T-A ?
Answer:
T-A-C-G-A-T
Explanation:
use the method of Apple in Tree and Car in the Garage
A matches with T and C matches with G
T matches with A and G matches with C
In the sexually reproducing Donax variabilis, a coquina mollusk, a large differentiation in physical characteristics allows
them to successfully populate their environment. Which of the following images represents the chromosomal
organization during meiosis that will increase the population's potential survival rate the most?
Answer: c (3rd image down)
Explanation: :Two factors affect population potential survival rate, which are crossing over and independent assortment.
Why is breaking and rearranging bonds in the process of photosynthesis and cellular respiration important? WILL GIVE BRAINLIEST
Answer:
this is your answer. thank you
5. If you used a Punnett Square to cross "Ee" and "Ee", how many different genotypes
and phenotypes would you get?
Dandelions can produce seeds by both asexual and sexual
reproduction.
1. How does this benefit the dandelion?
Answer:
only appear in veg plants
Explanation:
Unlike other forms of asexual reproduction in plants such as vegetative plant propagation via cuttings, apomixis is asexual reproduction via seeds. In the case of most dandelions (i.e., Taraxacum officinale), the embryo in the seed forms without meiosis, thus the offsping are genetically identical to the parent.
1.What is the main factor causing the salinity of the Everglades to change?(1 point)
snake populations
flood control levees
climate change
transportation canals
2.Which animal was responsible for a 99% drop in the opossum populations in the Everglades by 2012?(1 point)
wading bird
fox
python
whooping crane
3.How are Burmese pythons and whooping cranes similar?(1 point)
Both species were relocated to new environments as pets.
Both species’ populations were affected by human actions that caused environmental changes.
Both species’ populations were almost wiped out because of a variety of environmental changes.
Both species became top predators in their new environments.
4.A student is conducting research on the impact of humans on whooping crane populations in the North America. Which statement best supports the student’s claim that animals have been positively impacted by human intervention?(1 point)
Captive-bred whooping cranes have been introduced to natural environments.
In the 1800s, North America was home to over 1,000 whooping cranes.
In the early 1900s, the U.S. and Canada jointly signed a migratory bird treaty.
Although the hunting of whooping cranes was criminalized, their numbers continued to decline.
Explanation:
1. The Burmese python is an invasive species in the Everglades ecosystem. This means its numbers increase dramatically due to lack of natural predators. The python is feeding on small mammals such as rodents that feed of egg of animals such as the turtles. This, therefore, causes a ripple effect on the food web in the ecosystem e.g dramatically increasing turtle population.
2. Due to the lack of natural predators in the ecosystem, the Burmese python causes an imbalance in the Everglade ecosystem. They reduce the biodiversity of the ecosystem hence diminishing the quality of natural resources.
3. The number of Burmese pythons can be regulated by introducing a predator in the Everglade ecosystem. Examples of animals that can prey on the snake are eagles, pumas, lions, crocodiles, cobras, and humans. This will reduce the numbers of the Burmese python and restore the balance in the ecosystem.
Climate change leads to salinity, the python is responsible, the populations were affected due to human actions that caused environmental changes. In the early 19th, America and Canada signed a migratory bird treaty.
What is the explanation of the above answers. ?The Everglades is a wetland preserve of southern Florida and is made up of coastal mangroves. Due to the impacts of the climate the region is under threat from the rising seawater and hence salinity is also one of the factors that are due to climate change.
The python is a species that is responsible for the 99% for drop in the level of the possum population of the everglades. The native Burmese's python is a cause of animal decline they are similar to the cranes because both of them are wiped by the environmental changes made by man.
As per the research of the student the impact of human whooping cranes in North America is due to the early 19th century both the US and Canada signed the migratory bird treaty.
Find out more information about the main factor.
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