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## How many unique gametes could be?

The number of different possible gametes produced by the diploid genotype (AaBbCcDdEe) is **2 x 2 x 2 x 2 x 2 = 32** (2 for each pair of heterozygous genes).

## What are the types of gametes that can be produced by an individual with the genotype?

An individual with the genotype Aa can make two types of gametes: **A and a**. Since this is a random process, the individual will, on average, make equal numbers of each gamete. (Frequency of 1/2 for each gamete). A second individual with genotype Aa can make two types of gametes: A and a.

## How many unique gametes will there be for a Dihybrid cross?

There are **four possible combinations** of gametes for the AaBb parent. Half of the gametes get a dominant A and a dominant B allele; the other half of the gametes get a recessive a and a recessive b allele.

## What is the number of possible gametes that can be formed due to independent assortment?

32. Since humans have 46 chromosomes or 23 homologous pairs, what is the number of possible gametes that can be formed due to independent assortment of chromosomes? The number of possible combinations of maternal and paternal chromosomes in the resulting gametes is 223, or **about 8.4 million**.

## How do you identify the different types of gametes?

To calculate the total number of gametes that are produced by a particular genotype, **a specific formula 2n is** used, where n= number of heterogeneous alleles that are found in the genotype. Here, the given genotype consists of two heterogeneous alleles Bb, and Cc while one homozygous allele is AA.

## How many possible gamete combinations are there?

There are **8,324,608 possible combinations of 23 chromosome pairs**. As a result, two gametes virtually never have exactly the same combination of chromosomes. Each chromosome contains dozens to thousands of different genes.

## How do you calculate the number of possible combinations of a chromosome?

The possible combinations are equal to **2 ^{n}**, where n is the haploid number. For the organism in Figure 9-18, n = 2, so the number of chromosome combinations is 2

^{2}, or 4. For a human, n = 23, so there are 2

^{23}, or about 8 million, possible chromosome combinations!

## How many different types of gametes would be formed in an individual who is heterozygous for four different loci?

If a diploid organism is heterozygous for 4 loci then it will have four contrasting traits Aa, Bb, Cc, Dd and during meiosis **16 different kinds** of gametes will be formed.

## How many different kinds of gametes will be formed by an individual who is heterozygous for four gene pairs?

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 (2^{1}) |

2 (AaBb X AaBb) | 4 (2^{2}) |

3 (AaBbCc X AaBbCc) | 8 (2^{3}) |

4 (AaBbCcDd X AaBbCcDd) | 16 (2^{4}) |

## How many different types of gametes can be formed by individuals of the genotype AaBb quizlet?

An individual with the genotype AaBb produces **four different gametes** in equal proportions.