Mendel recognized the principle of independent assortment by working with the genes located on different chromosomes as otherwise, his dihybrid crosses would not have produced a 9:3:3:1 ratio for F2 phenotypes.
Mendel's law of independent assortment states that during a dihybrid cross, the assortment of each pair of traits is independent of the other. This means that, during gamete formation, one pair of traits is separated from another pair of traits independently. The genes for the traits that Mendel worked upon were located on different chromosomes or behaved as if they were. This feature helped Mendel to conclude with his finding as a law of independent assortment.
Gregor Mendel performed dihybrid crosses between organisms having two different traits: seed color and seed shape. One parent was homozygous dominant (YYRR: Yellow round) and the other was homozygous recessive (year: green wrinkled) for two different traits. He produced a heterozygous dominant trait ( YyRr: Round yellow) in the F1 progeny. When F1 progeny was self-crossed, he observed that the phenotypic ratio was 9:3:3:1. This means that the F2 progeny resulted in four different combinations of seeds: wrinkled yellow, round yellow, wrinkled green, and wrinkled yellow seeds.
With the genes located on different chromosomes, it was made easier for Mendel to observe the phenotypes in F2 progeny.
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I pour boiling water at 100 degrees Celsius into a cup at 50 degrees Celsius. Once the water touches the cup, the cup starts to heat up and the water starts to cool down... Eventually both the water and the cup will reach what temperature?
Answer:
75 degrees Celsius
Explanation:
Assuming that there is no heat lost to the surrounding, heat energy would move from the water to the cup until an equilibrium temperature is reached. At equilibrium, both the water and the cup would have the same temperature the sum of which would be equal to the sum of their initial temperatures.
Sum of initial temperatures = 100 + 50 = 150 degrees Celsius
At equilibrium, the temperature is divided equally; 150/2 = 75 degrees Celsius
Hence, both the water and the cup will reach 75 degrees Celsius temperature.
pleasa answer asap and be correct
If the weather map below shows today's forecast, how is the weather in
the two cities pictured most likely going to change in the next 24 hours?
Is there supposed to be a picture or something? Oh and HI BABEYDOLL
Ok that was weird- Imao
What is the common ancestor of crocodiles and turtles?
Answer:
alligator
Explanation:
Which sentence below is properly punctuated? a. Please, Sasha, come home, as soon as you can. b. I need sugar, butter, and eggs, from the grocery store. c. We will grant you immunity if you decide to cooperate with us. Please select the best answer from the choices provided A B C
Answer:
It's answer b.
Explanation:
prenatal kynurenine exposure in rats: age-dependent changes in nmda receptor expression and conditioned fear responding
Rationale: Levels of kynurenic acid (KYNA), an endogenous terrible modulator of alpha 7 nicotinic acetylcholine receptors (α7nAChRs) and antagonist at glutamatergic N-methyl-D-aspartate receptors (NMDARs), are expanded in the talent of patients with schizophrenia (SZ). In rats, dietary exposure to KYNA's immediately precursor kynurenine at some stage in the final week of gestation produces neurochemical and cognitive deficits in maturity that resemble these viewed in patients with SZ.
Objectives: The current experiments examined whether prenatal kynurenine publicity results in age-dependent adjustments in the kynurenine pathway (KP), expression of selected receptors, and cognitive function.
Methods: Pregnant dams have been fed unadulterated mash (progeny = ECON) or mash containing kynurenine (100 mg/day; progeny = EKYN) from embryonic day (ED) 15 to 22. Male offspring have been assessed as juveniles, i.e., prior to puberty (postnatal day [PD] 32), or as adults (PD70) for intelligence KYNA levels, α7nAChR and NMDAR gene expression, and performance on a hint worry conditioning (TFC) task.
Results: KYNA degrees have been similar between juvenile ECON and EKYN rats, whereas EKYN adults exhibited a ~3-fold amplify in intelligence KYNA relative to ECONs. NR2A expression was constantly reduced (30-40 %) in EKYN rats at each ages. Compared to ECON adults, there used to be a 50 % reduction in NR1, and a vogue toward diminished α7nAChR expression, in grownup EKYN rats. Surprisingly, juvenile EKYN rats performed considerably higher in the TFC paradigm than controls, whereas person EKYN animals confirmed the estimated deficits.
Conclusions: Collectively, our results provide evidence that KP changes in the fetal talent alter neuronal improvement and cause age-dependent results on neurochemistry and cognitive performance.
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What is the complementary DNA sequence for GCCAACTT?
Answer:
CGGTTGAA
Explanation:
C matches with G
G matches with C
T matches with A
A matches with T.
The visible spectrum of light that humans see is merely a narrow portion of the larger spectrum of electromagnetic radiation. please select the best answer from the choices provided t f
This statement is True the visible spectrum of light that humans perceive is only a small fraction of the wider spectrum of electromagnetic energy.
Why is electromagnetic important?There are numerous major scientific and technological uses for electromagnetics. To create desired magnetic fields, it is utilized in numerous electrical products. In order to create magnetic fields that will allow electromagnetic induction to happen, it is even utilized in electric generators.
What are five electromagnetic examples?Electromagnetic energy examples include:
Radio frequency.Microwaves.The infrared spectrum.All of the hues in the visible spectrum are considered to be light.Ultraviolet radiation.To know more about Electromagnetic visit:
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I understand that the question you are looking for is:
The visible spectrum of light that humans see is merely a narrow portion of the larger spectrum of electromagnetic radiation True/False
A scientist is studying specialized cells that help pump blood. Which cells is she most likely studying?
neurons, which are a type of muscle cell
cardiac cells, which are a type of muscle cell
epithelial cells, which are a type of blood cell
white blood cells, which are a type of blood cell
Answer:
Cell specialization, also known as cell differentiation, is the process by which generic cells change into specific cells meant to do certain tasks within the body. Cell specialization is most important in the development of embryos.
Explanation:
Neurons. Neurons are specialized cells that carry messages within the human brain
Muscle Cells. Muscle cells make movement possible
Sperm Cells. Specialized sperm cells are necessary for human reproduction
Red Blood Cells
Leukocyte. and those are some
19. The layers of the skin are..........
epidermis only
dermis only
hypodermis
epidermis and dermis
This process of heat transfer by conduction would NOT work ____
A) in space
B) in a solid
C) under water
D) in the atmosphere
Answer:
under water
Explanation:
the conduction between the two materials will be interrupted if it is under the water.
Cell divisions within the stratum __________ replace more superficial cells which eventually die and fall off.
Cell divisions within the stratum germinativum replace more superficial cells which eventually die and fall off.
The stratum germinativum, also known as the stratum basale, is the deepest layer of the epidermis and provides the germ cells that are necessary for the regeneration process of the epidermal layers, replacing the more superficial cells that end up dying and falling off.
What is a cell?A cell is the most basic and smallest form of life that exists in a living being, its parts are the membrane, the cytoplasm and the organelles including the nucleus.
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what is the process called in which one type of rock can change into another type of rock?
what is the difference between magma and lava
which statement is describes earth quakes?
A:glacier materials are moved by gravity
B:pressure forces magma out of an opening in earths crust
C:preesures in earths crust causes layers of rock to slide
Answer:
2) Magma is underground and lava is above ground.
3)C
How many stop codons are there
Answer:
3 stop codons
Answer:
There are 3 stop codons.
Explanation:
Name the phase of mitosis
Answer:
its either telophase or metaphase. i think its closer to telophase though since it has the cleavage furrow.
Explanation:
A group of students participated in a lab to investigate the effects of osmosis. On day-
soaked the egg in vinegar for 24 hours to remove its shell.
On day 2, the students massed the
shell-
less egg and placed the egg in corn syrup to soak for 24 hours. On day 3, the students
removed the egg from the corn syrup, massed the egg, and then placed the egg in disti
soak for 24 hours.
The results are summarized in the table below.
Answer:
again egg and increase in size
Answer: The egg will swell and continue to gain mass.
Explanation:
pleasse help me! giving crown!
Answer:
the answer is delition
Explanation:
Most autotrophs convert the sun's energy into chemical energy that is stored in macromolecules, which they then use to ____ and ____.
Answer:
provide structural support , speed biochemical reactions
Explanation:
Who is your Favorite animal? Explain why.
Answer:
exotic short hair cat
Explanation:
The Exotic Shorthair cat is very loving and affectionate. They are calmer than other breeds of cats, but do have their playful and wilder moments. They are perfect for people who live in small spaces, such as apartments and condominiums.
and they are super cute!
Going into the final stage of aerobic respiration, how many energy molecules have been created from one glucose molecule?.
4 molecules of ATP have been created from one glucose molecule going into the final stage of aerobic respiration.
The three steps of aerobic respiration utilize glucose to make ATP. The glycolytic pathway produces two ATP molecules, while the tricarboxylic acid cycle produces another two. Hence, 4 ATP molecules are produced going to the final stage of aerobic respiration.
The electron transport chain is the ultimate stage of aerobic respiration. A total of 32 extra ATP molecules are generated by electron transport from NADH and FADH2 molecules produced by glycolysis, pyruvate transformation, and the Krebs cycle. As a result, during cellular respiration, up to 36 molecules of ATP may be created from only one molecule of glucose.
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Cytoplasm is found...
A only in prokaryotic cells.
B in all cells.
C. in plant cells only.
Answer:
C i think
Explanation:
sorry if its wrong :(
Explain what would happen if a plant did NOT have xylem.
How are resources allocated?
Answer:
In economics, resource allocation is the assignment of available resources to various uses. In the context of an entire economy, resources can be allocated by various means, such as markets, or planning.
Explanation:
Hope this helps :)
can elephants die from sand in their eyes
Answer:
look it up, also i dont think they do
Explanation:
i needed points...sorry :<
sorry ikyou can't see well but please help I am on a timer!
Answer:
I think your best bet is B.
Explanation:
It makes the most sense to me, but im not sure.
Answer:
it is b as the digestive system breaks down food and the circulatory system takes blood and nutrients around the body
intradermal-delivered dna vaccine induces durable immunity mediating a reduction in viral load in a rhesus macaque sars-cov-2 challenge model
The SARS-CoV-2 virus that causes coronavirus disease 2019 (COVID-19) has had a significant global impact on social and economic infrastructures as well as public health.
Here, study examined the immunogenicity and anamnestic protective effectiveness of INO-4800, a SARS-CoV-2 spike DNA vaccine that is currently undergoing clinical trials, in rhesus macaques. Immunization with INO-4800 stimulated T cell responses and produced antibodies that bind to spike antigen and RBD with ADCP and ADCD activity. The SARS-CoV-2 pseudotypes D614 and G614 were both neutralized by animal serum. Animals exposed to SARS-CoV-2 several months after immunization demonstrated a quick recall of anti-SARS-CoV-2 spike protein T cell and neutralizing antibody responses.Learn more about the SARS-CoV-2 with the help of the given link:
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Trapped oil can be discovered by geologists and extracted through __________.
Multiple choice question.
cross out
A)
mining
cross out
B)
drilling
cross out
C)
excavating
cross out
D)
climbing
Answer:
I think it is c
Explanation:
The movement of molecules into the cell through transport proteins in the cell membrane is a type of what
Answer:
diffusion
Explanation:
Good luck!
Which of the following are examples of passive transport? Select all that apply.
1 exocytosis
2 membrane pumps
3 facilitated diffusion
4 diffusion
5 osmosis
Facilitated diffusion, osmosis and diffusion are examples of passive transport
WHAT IS PASSIVE TRANSPORT?
Passive transport is a kind of transport that does not require the input of energy (ATP). The examples of passive transport there is are as follows:Osmosis: Osmosis is the movement of water from a region of high concentration to a region of low concentration via a semipermeable membrane. Since, water is moving down a concentration gradient, no energy is required. Diffusion: This is the movement of molecules from a region of higher concentration to a region of lower concentration. No energy is required for this to occur as well. Facilitated diffusion: Facilitated diffusion is a kind of diffusion that occurs with the aid of transport proteins. It also does not require energy input.Therefore, facilitated diffusion, osmosis and diffusion are examples of passive transport.
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What are the various functions of proteins embedded in the cell membrane?
Answer:
Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane, including selective transport of molecules and cell-cell recognition.
Explanation: