Question

How many types of zygotic combinations are possible between a cross aabbccdd×aabbccdd?

Answer 1

Answer:

We can calculate total zygotic combinations by two methods.

1. We can use the formula to calculate total zygotic combinations.

by using following formula we can find total zygotic combinations -

Total zygotic combination = 2ⁿ

where n = number of heterozygous conditions.

In the given question -

homozygous combinations are - BB AA bb DD

heterozygous combinations are - Aa Cc Cc Dd

therefore, by the above formula we get -

n = 4

2ⁿ = 2⁴

= 2 × 2 × 2 × 2

= 16

So, the number total possible zygotic combinations is 16.

2. We can also find total zygotic combination by using chakered board method.

(please see the attachment.)