Question

1)AAbb х aaBB як схрестити 2)АaBb х Aabb

Answer 1

1)
P: AAbb × aaBB (родительские организмы)
G: Ab | aB (гаметы материнские | гаметы отцовские) 
F₁: AaBb (потомство)

2)
P: AaBb × Aabb
G: AB, Ab, aB, ab | Ab, ab

×   |   AB   |   Ab   |   aB   |   ab
Ab | AABb| AAbb | AaBb| Aabb
ab | AaBb | Aabb | aaBb | aabb

F₁: AABb, AAbb, AaBb, Aabb, AaBb, Aabb, aaBb, aabb

Answer 2

To perform a genetic cross between the two individuals, we need to determine their respective genotypes first. In genetics, capital letters represent dominant alleles, and lowercase letters represent recessive alleles.

1. AAbb x aaBB cross:

• Parent 1: AAbb (genotype)
• Parent 2: aaBB (genotype)

The alleles segregate during gamete formation, and the possible gametes for each parent are as follows:

Parent 1 (AAbb): Gametes: AB (from A) and ab (from b)

Parent 2 (aaBB): Gametes: aB (from a) and aB (from B)

Now, we can combine the gametes from each parent to produce the possible offspring genotypes:

Possible Offspring Genotypes:

• AaBB (50% chance)
• AaBb (50% chance)

2. AaBb x Aabb cross:

• Parent 1: AaBb (genotype)
• Parent 2: Aabb (genotype)

The alleles segregate during gamete formation, and the possible gametes for each parent are as follows:

Parent 1 (AaBb): Gametes: AB (from A), Ab (from a), aB (from B), and ab (from b)

Parent 2 (Aabb): Gametes: Ab (from A), ab (from a), b (from B)

Now, we can combine the gametes from each parent to produce the possible offspring genotypes:

Possible Offspring Genotypes:

• AaBB (25% chance)
• AaBb (50% chance)
• Aabb (25% chance)

These are the potential genotypes of the offspring resulting from each genetic cross. Keep in mind that the actual ratios may vary due to chance in the process of gamete formation and fertilization.