What is the name of the scientist credited with the genetic principle known as t

Question

What is the name of the scientist credited with the genetic principle known as the "law of independent assortment"? Name another genetic principle credited to this "father of genetics". What is the diploid chromosome number of the human species? Which of these best describes a homologous chromosome? a) It has no equal in the cell it is in. b) it has a mate in the nucleus and the mate contains the same genes but in a different linear order along the chromosome length. c) it has a mate in the cell that it synapses with during meiosis but the mate has different genes. d) it has a mate in the cell which contains the same genes in the same linear order as found along both chromosomes when they are paired together in meiosis. e) none of these will describe a homologous chromosome in a eukaryotic cell.

Explanation / Answer

22.

Gregor Johann Mendel is considered as the father of genetics for his outstanding contributions to the science of heredity.

He conducted experiments on pea plants and formulated two principles.

They are,

1. Law of segregation

2. Law of independent assortment

23.

Law of segregation

24.

Humans have 23 sets of chromosomes in somatic cells.

So, diploid number of chromosomes, 2n = 46

25.

A homologous pair of chromosomes contain same genes and in the same linear order.

They pair during meiosis and undergo crossing over to produce recombinant chromosomes.

In a homologous pair, one chromosome comes from mother and the other from the father.

Homologous chromosomes differ by few SNP's, insertions and deletions.\

So, option D is correct.

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