Answer: c) A motor vehicle triploids can be made artificially from the crossing anywhere between haploid and an excellent diploid

Concern 46. a) Selfing of monosomic plants establish nullisomics. b) Inside a genuine diploid the monoploid and you can haploid chromosome count is exact same. c) An automible triploids can be produced artificially by the crossing between haploid and you may a beneficial diploid. d) A rise in the amount of chromosome establishes could have been an important factor on the source of new bush kinds.

a) (i) C (ii) D (iii) B (iv) A b) (i) B (ii) C (iii) D (iv) A-c) (i) C (ii) B (iii) A great (iv) D d) (i) D (ii) C (iii) A (iv) B Respond to d) (i) D (ii) C (iii) A good (iv) B

Matter 48. When red eyed people Drosophila is crossed which have light eyed men, the fresh new FI offsprings would-be good) Girls are which have white-eye and you may males is that have red-eye. b) Males was that have red-eye and females was that have red-colored attention. c) Both males and females try that have red-eye d) Both males and females was with white eye.

Matter forty-two. a) The organisms and therefore features several very first categories of chromosomes produced from two different specie’s. b) He’s four otherwise six duplicates of their individual genome – caused by the doubling of the diploid varieties. c) They’re produced by inter-certain crosses and you can fertility is recovered by chromosome increasing having colchicine treatment. d) He could be shaped anywhere between closely relevant varieties merely.. Answer: b) He’s five otherwise half dozen copies of their individual genome – created by the increasing of diploid types.

Concern 50. a) Thev can be made forcibly bv crossing ranging from autotetraploid diploid. b) He or she is extremely fertile on account of plethora of gametes. c) Expanded triploid bananas was seedless with huge fresh fruit than just diploid. d) Well-known doob get across was a natural autotriploid. Answer: b) He or she is very fertile due to great number of gametes.

Matter 51. a) It occur in germinal muscle during gametogenesis. b) Take place throughout Pachytene condition away from prophase I out of meiosis.. c) It’s in person proportional into the regularity out-of recombination among them. d) escort girl Buffalo It’s common thickness keeps higher importance. Answer: c) It’s really proportional into frequency out of recombination among them.

Answer: c) Both men and women is that have red-eye

Concern 55. a) Deletions exists due to chemical, medicines rays. b) On such basis as area of breakage to your chromosome it’s split into Terminal deletion inter calary removal c) Larger deletions features evolutionary significance. d) Deletions is actually recorded in Drosophila Maize Answer: c) Big deletions has evolutionary benefit.

Question 56. How do we contrary brand new sterility out of FI crossbreed? a) Genetic Engineering b) Protoplasmic blend c) Triggered Mutation d) Triggered chromosomal aberration Address: d) Caused chromosomal aberration

Question 59

Matter 57. In the event the haploid number into the a cell try 23. The fresh new twice monosomic and you will pentasomy number might possibly be an effective) forty-two and forty-two b) 17 and you may 34 c) 47 and you will 46 d) 45 and you may 48 Answer: a) forty-two and you will 49

Question 58. Genetics located personal together with her on a single chromosome and handed down with her portrayed as the a great) connected genes b) unlinked gene c) syntenic genes d) trans genetics Address: a) connected genes

Assertion (A): Arabidopsis bush chromosomes convey more repeats out-of TTT nucleotide sequences during the this new telomeres. Reasoning (R) : Maximum endonuclease enzyme is utilized from the creation out of nucleotide series (Telomeres) mui a good) (A) try incorrect, (R) is correct b) (A) is correct, (R) is the right cause (A) c) (A) is correct, (R) is the incorrect reasons (A) d) (A) and you may (R) are completely wrong. Answer: b) (A) is correct, (R) is the correct factor (A)