Concern 46. a) Selfing of monosomic vegetation establish nullisomics. b) During the a genuine diploid both the monoploid and haploid chromosome count was exact same. c) An auto triploids can be made artificially from the crossing ranging from haploid and an effective diploid. d) A rise in what number of chromosome set has been an important aspect from the provider of new plant variety.

a) (i) C (ii) D (iii) B (iv) A b) (i) B (ii) C (iii) D (iv) A c) (i) C (ii) B (iii) Good (iv) D d) (i) D (ii) C (iii) An excellent (iv) B Address d) (i) D (ii) C (iii) An excellent (iv) B

Matter forty-eight. Whenever red eyed ladies Drosophila are entered with light eyed men, the fresh new FI offsprings might possibly be a good) Females is actually with white-eye and you can people was having red-eye. b) Males are with red-eye and you can people are with reddish eye. c) Both men and women are having red eye d) Both males and females try which have white-eye.

Concern forty two. a) All of the organisms wireclub-coupons hence possess 2 or more earliest sets of chromosomes produced from one or two some other specie’s. b) He’s got four or half dozen copies of its individual genome – induced from the increasing of diploid species. c) They may be created by inter-particular crosses and you will virility was recovered because of the chromosome increasing that have colchicine medication. d) He or she is formed anywhere between directly relevant types simply.. Answer: b) He’s got five otherwise half dozen duplicates of the very own genome – created because of the doubling of the diploid kinds.

Question 50. a) Thev can be made forcibly bv crossing ranging from autotetraploid diploid. b) He or she is highly fruitful because of large number of gametes. c) Expanded triploid bananas are seedless which have large fruits than simply diploid. d) Popular doob cross is an organic autotriploid. Answer: b) They are highly rich on account of large number of gametes.

Concern 51. a) They occur in germinal structure while in the gametogenesis. b) Occur throughout Pachytene state out of prophase We of meiosis.. c) It’s myself proportional for the volume out of recombination between the two. d) It has got common thickness provides high significance. Answer: c) It’s privately proportional on the volume away from recombination between the two.

Answer: c) Both males and females are which have red-eye

Question 55. a) Deletions exist on account of chemical substances, drugs radiation. b) On the basis of area of breakage on chromosome it’s split into Critical deletion inter calary deletion c) Larger deletions has evolutionary significance. d) Deletions is recorded inside Drosophila Maize Answer: c) Huge deletions keeps evolutionary relevance.

Concern 56. How can we reverse the newest infertility out-of FI hybrid? a) Genetic Technologies b) Protoplasmic combination c) Induced Mutation d) Created chromosomal aberration Address: d) Triggered chromosomal aberration

Matter 59

Matter 57. If haploid count during the a cellular is actually 23. The fresh double monosomic and you can pentasomy amount would be an excellent) forty two and forty-two b) 17 and 34 c) 47 and you may 46 d) forty-five and you may forty-eight Respond to: a) forty two and you will forty two

Matter 58. Genes receive romantic with her for a passing fancy chromosome and passed on together with her portrayed because the an effective) linked genes b) unlinked gene c) syntenic genetics d) trans genes Answer: a) connected genetics

Denial (A): Arabidopsis plant chromosomes have significantly more repeats out-of TTT nucleotide sequences for the the brand new telomeres. Cause (R) : Limit endonuclease chemical is used regarding formation of nucleotide sequence (Telomeres) mui an effective) (A) try wrong, (R) is correct b) (A) is right, (R) is the correct reasons (A) c) (A) is correct, (R) ‘s the completely wrong need (A) d) (A) and you can (R) try incorrect. Answer: b) (A) is correct, (R) ‘s the correct reason (A)