Explain the role rods and cones play in vision.

Biology

2 answers:

k0ka [10]3 years ago

6 0

Answer:

The cones detect the brightness and the rods the colors.

Explanation:

Thanks to a layer of photoreceptors inside the eye, it is able to convert the captured light into brain signals.

There are two types of photoreceptors: rods and cones.

Rods: they allow the human eye to have a visual acuity (the eye's ability to resolve and perceive small details in an object) and to differentiate colors.
Cones: are in charge of detecting the intensity of the light. They are very numerous and are very sensitive. Not being able to distinguish colors, they give rise to an achromatic vision.

Butoxors [25]3 years ago

5 0

Rods work very well in darkness/ low light. Cones process colors.

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A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR).

igomit [66]

So I don’t see answer choices here, but your answer is 50% of the offspring will be homozygous dominant with RR, and 100% of them will carry a homozygous dominant gene of Rr

If you take the two sets and put them into a punnett square, it would look like this (image attached):

When the two sets of alleles are crossed, you would end up with half of your pairs being fully dominant (RR), and the other half being dominant while containing a recessive gene (Rr). Since there’s only one recessive gene in these pairs, it gets overridden and the pair itself is dominant.

So your answer is 50% will be homozygous dominant with RR!