Samacheer Kalvi Class 12 Chromosal Basic of Inheritance - 1

Question: 1

Incomplete linkage was reported by Hutchinson in

(A) Lathyrus odoratus

(B) Neurospora

(C) Maize

(D) Drosophila

Question: 2

Which is not a non-ionizing radiation?

(A) X-rays

(B) UV rays

(C) Alpha rays

(D) Gamma rays

Question: 3

Which one of the following ploidy is irrelevant to others?

(A) Monosomy

(B) Pentasomy

(C) Tetrasomy

(D) Trisomy

Question: 4

The chromosomal condition 2n -2 represents

(A) Tetrasomy

(B) Nullisomy

(C) Monosomy

(D) Nuisomy

Question: 5

An allohexaploidy contains

(A) Six copies of one genome

(B) Six different genomes

(C) Six copies of three different genomes

(D) Two copies of three different genomes

Question: 6

During cross over, chiasma occurs between

(A) Non-sister chromatids of homologous chromosomes

(B) Non-sister chromatids of non- homologous chromosomes

(C) Sister chromatids of non-homologous chromosomes

(D) Sister chromatids of homologous chromosomes