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Dafna1 [17]
2 years ago
9

when you perform a dihybrid cross with two heterozygous individuals for the two traits, what is the expected phenotypic ratio?

Biology
2 answers:
Sergeu [11.5K]2 years ago
8 0

Answer:

9:3:3:1

Explanation:

A dihybrid cross tracks two traits. Both parents are heterozygous, and one allele for each trait exhibits complete dominance *. This means that both parents have recessive alleles, but exhibit the dominant phenotype. The phenotype ratio predicted for dihybrid cross is 9:3:3:1. (There's a calculator on google that show the outcomes just to let ya know) hope it's correct .

Ierofanga [76]2 years ago
8 0

Answer:

when you perform a dihybrid cross with two heterozygous individuals for the two traits, what is the expected phenotypic ratio?

HhBb x HhBb= HHBB, HhBb, HhBb, hhbb

3:1

Explanation:

This results into two homozygous and two heterozygous, one homozygous is dominant while the other is recessive, although out of the four offspring three are dominant over one recessive

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Which of the following is not one of the advantages that a closed circulatory system has over an open circulatory system? A. The
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The correct answer is option A. "The contents of blood come into closer contact with tissues in a closed system than an open system".

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In a closed circulatory system, the blood has an specific path, circulating from arteries to veins and to smaller blood vessels throughout the body. This is in contrast with open circulatory systems at which the blood is not contained in arteries or veins but it suffuses the body. A closed circulatory system have many advantages over open circulatory system, however in a closed circulatory system the contents of blood are not into closer contact with tissues in than an open system. Actually, in an open circulatory system the blood is in closer contact with tissues.

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What explanation accounts for the formation of sunspots?
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Why do we classify lionfish populations near the eastern united states as an invasive species? what suggests that these new popu
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6 0
3 years ago
In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over spher
dangina [55]

Answer:

Genotypic ratio = 16 WwDd: 0

Phenotypic ratio = 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit

Explanation:

This question involves two different genes coding for fruit color and fruit shape respectively. The allele for white fruit color (W) is dominant over yellow fruit color (w) and disk shaped fruit (D) is dominant over sphere-shaped fruit (d).

According to this question, If a squash plant pure-breeding for white, disk shaped fruit (WWDD) is crossed with a plant pure breeding for yellow, sphere shaped fruit (wwdd), the following gametes will be produced by each GAMETE:

WWDD - WD, WD, WD, WD

wwdd - wd, wd, wd, wd

Using these gametes in a punnet square, all of the offsprings will have genotype WwDd, which is phenotypically white and disk shaped fruit.

The genotypic ratio is 4 WwDd: 0

The phenotypic ratio is 16 white, disk shaped fruit : 0 yellow, sphere shaped fruit.

8 0
2 years ago
Drag each label to the correct location on the image.
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Answer in picture below:

Base on the given:

if the line goes down = decrease/bad

if the line goes up = increase/good

<u><em>~Lenvy~</em></u>

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