We now know that this independent assortment of genes occurs during meiosis in eukaryotes. Meiosis is a type of cell division that reduces the number of chromosomes in a parent cell by half to produce four reproductive cells called gametes.
What is the independent assortment of chromosomes?
: formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes by the passage according to the laws of probability of one of each diploid pair of homologous chromosomes into each gamete independently of each other pair.
How many gametes are produced by AaBb showing independent assortment?
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.
How do you calculate Independent Assortment?
If the genes assort independently, we can use the product rule simply to multiply all the proportions of the desired single gene genotypes (shown in bold) to obtain the expected proportion (probability) of a/a ; b/b ; c/c; it will be 1/2 × 1/4 × 1/4 = 1/32 .
What is Independent Assortment a result of?
The independent assortment of chromosomes is a result of the independent division of chromosomes into separate gametes. Then, crossing over takes place where genes on each chromosome are rearranged. The Law of Independent Assortment discusses the random genetic inheritance from both parents.
Which best describes the Law of Independent Assortment?
The law of independent assortment was first introduced by a biologist named George Mendell. It stated that when two or more characteristics are inherited, independent assortment would happen and there would be an equal opportunity for both traits to occur together.
How many gametes can be produced from 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)|
What is the law of Independent Assortment?
The Principle of Independent Assortment describes how different genes independently separate from one another when reproductive cells develop. … During meiosis, the pairs of homologous chromosome are divided in half to form haploid cells, and this separation, or assortment, of homologous chromosomes is random.
Why law of Independent Assortment is not universal?
Most of the genes are linked, they are situated on one chromosome. … As a result, this law of independent assortment can be applied only to those characteristics that are situated on other chromosomes. This is why the law of independent assortment is not applicable universally.
What is Mendel’s Second law of Independent Assortment?
Mendel’s 2nd law states that during gamete formation the segregation of each gene pair is independent of other pairs. Mendel’s 2nd law is often referred to as the principle of independent assortment. Both of Mendel’s laws are about segregation, which is the seperation of allele pairs.