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RUDIKE [14]
3 years ago
9

A cross gives a 3:1 phenotypic ratio. What are the genotypes of

Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0

Answer:

Aa x Aa

Explanation:

To achieve a 3:1 ratio, both parents must have one dominant and one recessive gene.

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In mountain areas, when large amounts of rock fragments move downslope of their own weight, they are called ________.
LUCKY_DIMON [66]

Answer:

Avalanche

Explanation:

They mostly happen in mountainous regions where there is snow/ice and rocks. The ice underneath the boulders thaws momentarily due to the pressure of the rocks and ice above hence acting as a lubricant for the sliding down of the rocks down the mountain.  Avalanches can be triggered by earthquakes, explosions, and etcetera.

4 0
4 years ago
In a human eye, there are three types of cones that allow us to see colors. the three different types are most sensitive to red,
vitfil [10]

<span>The answer is </span>‘<span>the molecule would have to be longer to be more sensitive to red light and shorter to be more sensitive to blue light.</span>’The cones change shape and vary their length once they absorb a photon. This change is transduced, through biochemical pathways, into nerve impulse and carried to the brain.

5 0
3 years ago
What type of cell death is likely to occur if there is a failure of regulation of the cell cycle?
alukav5142 [94]
<span>Im pretty sure its, Apoptosis. Hope this helps!</span>
7 0
3 years ago
. In this example, red flower coloring is dominant to white, and your population of 200 plants has 150 plants with red flowers.
AnnyKZ [126]

Answer:

a) The allele frequencies are - p= 0.8660\\q= 0.134

b) Genotype frequencies for this population- p^2=0.75, q^2= 0.0179, 2pq = 0.2321

Explanation:

Given ,

Red color of flower is dominant to white color flower

Let "R" represents allele for red color and "r" represents allele for white color

out of 200 flower, 150 are red flowers.

So the frequency of red flowers with genotype "RR" is equal to

p^{2} = \frac{150}{200} \\p^{2} =0.75

As per hardy Weinberg's I equilibrium equation -

p+q=1\\p=\sqrt{p^2} \\p=\sqrt{0.75} \\p= 0.8660\\q= 1-p\\q= 1-0.8660\\q = 0.134

a) The allele frequencies are - p= 0.8660\\q= 0.134

Frequency of genotype "rr" i.e homozygous recessive white flower is

q^{2} \\0.134^2\\q^2 = 0.0179\\

Substituting the values of p^2 and q^2, in below equation, we get -

p^2+2pq+q^2=1\\2pq= 1-p^2-q^2\\2pq= 1-0.75-0.0179\\2pq=0.2321

b) Genotype frequencies for this population- p^2=0.75, q^2= 0.0179, 2pq = 0.2321

8 0
3 years ago
Answer the questions based on the information given.
shusha [124]

What is the rate of motion of the Amur plate? Express your answer in .  

✔ 5 mm/year

Where would the plate be after 1 million years? Express your answer in m.  

✔ 5,000 meters east

What geologic feature will form between the Amur and Eurasian plates?  

✔ new ocean floor

3 0
3 years ago
Read 2 more answers
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