TN State Board Samacheer Kalvi Online Test for 11th Std - Biology - English - Chromosomal Basis of Inheritance

Question 1 Of 10

If haploid number in a cell is 18. The double monosomic and trisomic number will be

35 and 37 34 and 38 37 and 35 17 and 19

Question 2 Of 10

Accurate mapping of genes can be done by three point test cross because increases

Possibility of single cross over Possibility of double cross over Possibility of multiple cross over Possibility of recombination frequency

Question 3 Of 10

Genes G S L H are located on same chromosome. The recombination percentage is between L and G isT5%, S and L is 50%, H and S are 20%. The correct order of genes is

GHSL SHGL SGHL HSLG

Question 4 Of 10

The point mutation sequence for transition, transition, transversion and transversion in DNA are

A to T, T to A, C to G and G to C A to G, C to T, C to G and T to A C to G, A to G, T to A and G to A G to C, A to T, T to A and C to G

Question 5 Of 10

Which of the following sentences are correct?

1 and 2 2 and 3 3 and 4 1 and 4

Question 6 Of 10

Assertion (A): Gamma rays are generally use to induce mutation in wheat varieties.

A is correct. R is correct explanation of A A is correct. R is not correct explanation of A A is correct. R is wrong explanation of A A and R is wrong

Question 7 Of 10

The A and B genes are 10 cM apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?

25 AB, 25 ab, 25 Ab, 25 aB 10 AB,10 ab 45 AB, 45 ab 45 AB, 45 ab, 5 Ab, 5aB

Question 8 Of 10

An allohexaploidy contains

Six different genomes Six copies of three different genomes Two copies of three different genomes Six copies of one genome

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Biology - English Medium - Chromosomal Basis of Inheritance

Samacheer Kalvi 11th Biology - Chromosomal Basis of Inheritance - Book Back Questions in English Medium