Concern 46. a) Selfing off monosomic herbs generate nullisomics. b) For the a genuine diploid both monoploid and haploid chromosome count try exact same. c) A car triploids can be made artificially from the crossing between haploid and you can a great diploid. d) A boost in exactly how many chromosome sets might have been an enthusiastic essential requirement on the resource of the latest bush varieties.
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 good (iv) B Answer d) (i) D (ii) C (iii) A great (iv) B
Question forty eight. Whenever red eyed lady Drosophila try crossed that have white eyed men, the fresh FI offsprings was a great) Females is actually that have white eye and men was that have red eye. b) Males is actually having red eye and lady are with purple eyes. c) Both males and females is actually which have red eye d) Both men and women are that have white eye.
Question 49. a) The bacteria and therefore features two or more first categories of chromosomes derived from one or two additional specie’s. b) He has got five or half dozen duplicates of its individual genome – caused from the doubling of the diploid types. c) They’re developed by inter-specific crosses and virility is restored from the chromosome increasing with colchicine cures. d) He or she is designed ranging from directly associated varieties only.. Answer: b) He has got five otherwise six duplicates of its very own genome – caused because of the doubling of your diploid variety.
Matter 50. a) Thev can be produced artificially bv crossing between autotetraploid diploid. b) He could be highly fertile on account of plethora of gametes. c) Developed triploid bananas try seedless which have large fresh fruit than just diploid. d) Common doob mix is actually an organic autotriploid. Answer: b) He or she https://datingranking.net/nl/xmeeting-overzicht/ is extremely rich due to large number of gametes.
Concern 51. a) It take place in germinal muscle throughout gametogenesis. b) Occur through the Pachytene county regarding prophase I out-of meiosis.. c) It is myself proportional for the frequency out of recombination between the two. d) It has got common occurrence has higher advantages. Answer: c) It is privately proportional for the regularity regarding recombination between the two.
Answer: c) Both males and females is having red eye
Matter 55. a) Deletions exist on account of chemical substances, medication rays. b) Based on venue of damage for the chromosome it is split up into Critical removal inter calary removal c) Larger deletions has evolutionary relevance. d) Deletions is registered in Drosophila Maize Address: c) Large deletions provides evolutionary importance.
Concern 56. How do we reverse the brand new sterility out-of FI crossbreed? a) Genetic Technology b) Protoplasmic combination c) Caused Mutation d) Created chromosomal aberration Answer: d) Created chromosomal aberration
Matter 57. When the haploid count into the a cellular is 23. The brand new double monosomic and pentasomy amount would-be good) forty-two and you may forty two b) 17 and you will 34 c) 47 and 46 d) forty five and you may forty-eight Respond to: a) 49 and you will forty-two
Question 58. Genetics located personal together with her on a single chromosome and you can passed down along with her illustrated just like the a good) connected genetics b) unlinked gene c) syntenic family genes d) trans family genes Respond to: a) connected family genes
Denial (A): Arabidopsis plant chromosomes convey more repeats from TTT nucleotide sequences into the the brand new telomeres. Reasoning (R) : Restrict endonuclease chemical can be used regarding the creation off nucleotide succession (Telomeres) mui an excellent) (A) are incorrect, (R) is right b) (A) is correct, (R) ‘s the correct reasons (A) c) (A) is correct, (R) is the completely wrong need (A) d) (A) and you can (R) are wrong. Answer: b) (A) is right, (R) is the best factor (A)