# Your question: How many gametes are formed from BbRr?

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## How many gametes are obtained from genotype BbRr?

So the number of guinea pigs that are heterozygous for both gene pairs (BbRr) is [4/16] which is equal to[;1/4]which is [25% ].

Gametes: BBRR bbrr BR BR
br BbRr BbRr

## How many gametes are there in AaBbCc?

Hints For Biology 101 Exam #4

No. of homologous chromosome pairs (heterozygous genes) No. of different gametes from each parent
1 (Aa X Aa) 2 (21)
2 (AaBb X AaBb) 4 (22)
3 (AaBbCc X AaBbCc) 8 (23)
4 (AaBbCcDd X AaBbCcDd) 16 (24)

## How are gametes formed?

Gametes are formed through meiosis (reduction division), in which a germ cell undergoes two fissions, resulting in the production of four gametes. During fertilization, male and female gametes fuse, producing a diploid (i.e., containing paired chromosomes) zygote.

## How many gametes can be produced?

But what about chromosome reassortment in humans? Humans have 23 pairs of chromosomes. That means that one person could produce 223 different gametes. In addition, when you calculate the possible combinations that emerge from the pairing of an egg and a sperm, the result is (223)2 possible combinations.

## What gametes are produced by AABbCC?

The plant having genotype AABbCC is heterozygous for only one character B. Number of “gametes = 2n”, where n is the heterozygosity.” Since n = 1 so 2 gametes will be formed. Those are ABC and AbC. So the two types of gametes will be ABC and AbC.

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## How many genotype will form from AABbCC?

So, the correct answer is ‘Four‘.