Questions: Which of the following represent a P1 of a Mendelian dihybrid cross? CHOOSE ALL THAT APPLY aa × AA A B × a b AABB × aabb AABB × aaBB aaBb × AABb AAbb × aaBB

Which of the following represent a P1 of a Mendelian dihybrid cross? CHOOSE ALL THAT APPLY aa × AA A B × a b AABB × aabb AABB × aaBB aaBb × AABb AAbb × aaBB
Transcript text: Which of the following represent a P1 of a Mendelian dihybrid cross? CHOOSE ALL THAT APPLY aa $\times \mathrm{AA}$ $A B \times a b$ AABB $\times$ aabb AABB $\times$ aaBB $\mathrm{aaBb} \times \mathrm{AABb}$ AAbb $\times$ aaBB
failed

Solution

failed
failed

The answer is the third one: AABB × aabb.

Explanation:

  1. aa × AA: This represents a monohybrid cross, not a dihybrid cross, because it involves only one gene with two alleles (A and a).

  2. AB × ab: This notation is not complete for a dihybrid cross. It lacks the specification of two alleles for each of two genes, which is necessary for a dihybrid cross.

  3. AABB × aabb: This is a classic example of a Mendelian dihybrid cross. It involves two genes, each with two alleles (A/a and B/b), and both parents are homozygous for both genes.

  4. AABB × aaBB: This is not a dihybrid cross because both parents are homozygous for the B gene, so it does not involve two heterozygous gene pairs.

  5. aaBb × AABb: This is not a dihybrid cross because the parents are not homozygous for both genes. It involves heterozygosity in only one gene (B/b).

  6. AAbb × aaBB: This is not a dihybrid cross because each parent is homozygous for one gene and heterozygous for the other, which does not fit the classic dihybrid cross definition.

In summary, the third option, AABB × aabb, is the only one that represents a true Mendelian dihybrid cross.

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
What is the first step of the accounting cycle?
failedAnswered
Given m n, find the value of x and y.
failedAnswered
Identify the lower class limits, upper class limits, class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary. Identify the lower class limits (in 1000 cells/ μL ). (Type integers or decimals. Do not round. Use ascending order.) Identify the upper class limits (in 1000 cells/ μL ). (Type integers or decimals. Do not round. Use ascending order.) Identify the class width (in 1000 cells / μL ). (Type an integer or a decimal. Do not round.) Identify the class midpoints (in 1000 cells/ μL ).
failedAnswered
What is the funnel approach in an introduction paragraph? A Starting with a specific thesis and then generalizing. B Starting more generally with background info and narrowing down to a specific, opinionated thesis. (C) Including detailed evidence in the introduction. D Restating the thesis multiple times
failedAnswered
Below are a few body regions and their locations. Match each region to its location. hypogastric below the cartilage of the epigastric above the stomach inguinal at waist level on either side lumbar the middle section right below hypochondriac on either side of the epigastric