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Alenkasestr [34]
3 years ago
12

Scientists have found that the hedgehog signaling pathway is active in embryos during the early development of the neural tube,

motor neuron specification, left-right symmetry, body plan, limbs, and retinas. In the 1950s, sheep feeding on the corn lily (Veratrum species) in mountain pastures gave birth to a number of lambs with only one eye. These one-eyed lambs were explained when the compound, now known as cyclopamine, was discovered in the corn lily. Explain how a failure to have cell division occur at a critical time during development could lead to lambs with one eye
Biology
1 answer:
andrew11 [14]3 years ago
4 0

Answer:

SHH-Signalling Inhibitions

Explanation:

It was demonstrated by researchers at John Hopkins Medical Institute that the neural explants that contain the SHH-signalling inhibition cells were failed to produce the further ventral cell types that are crucial for the normal development of the cell. Actually, the studies also show the interaction of Cyclopamine with SHH-Biogenesis and that will ultimately turn into a N-terminal molecule by interacting sterols in cell like cholesterol etc.

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The tiny blue-eyed Mary flower is often one of the first flowers seen in the spring in some regions of the United States. The fl
AlekseyPX

Answer:   Flower color is an inherited trait, and the F1 and F2 phenotypes of the flowers arising from the pink and white cross can best be explained by another gene product that influences the

phenotypic expression.

Explanation:

3 0
3 years ago
Which common medication is extremely toxic to cats?
DochEvi [55]
<span>Aspirin/Paracetamol/Ibuprofen are all extremely toxic to cats when an incorrect dose is given. Whilst common medication can be beneficial to some animals when given in the correct dose, it can also be highly dangerous. For example, one normal-strength tablet of paracetamol is highly toxic for a cat, and another just a day later will prove fatal.</span><span />
7 0
3 years ago
The mrna codon CUU could mutate to C___ and still code for leucine, which could be a neutral mutation. What is the blank?
Lelechka [254]
A codon is a sequence of three bases found on the messenger RNA (mRNA) molecule which is translated to produce an amino acid. Each amino acid is coded by one or more specific codons. If the codon is changed through a mutation, the amino acid produced may be different. However, in this case, the other codons that produce Leucine are:

UUA, UUG, CUU, CUC, CUA and CUG

So the code CUU could mutate to CUC, CUA or CUG and leucine would still be produced.
8 0
3 years ago
Three gel cubes similar to those from the previous
marta [7]

Answer:

These gel cubes can be thought of as representing individual cells. As the cubes interact with their surroundings based on the amount of surface area and volume they have, the efficiency movement of substances in and out of cells depends on the two attributes as well. Greater surface area will mean more efficient rates of diffusion, which implies a smaller surface area to volume ratio is ideal for a biological cell.

Hope that answers the question, have a great day!

4 0
3 years ago
Jane Goodall spent years with the chimpanzees of Gombe. Sitting quietly for hours, she watched the animals closely and took note
Elanso [62]

Jane Goodall was making observations on chimpanzees.

<u>Explanation: </u> 

Jane Goodall spent years with the chimpanzees of Gombe. It all started when she found a chimp who was hungry and wonderfully used a twig of the branch to take the termites of the tree and feed on it. Goodall was fascinating to see a chimp think and behave like a human.

She observed the animal so closely and took note of each behavior. She was so passionate about the chimps that she overcame all the hurdles to find out the redefined mankind.

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3 years ago
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