Answer: c) A motor vehicle triploids can be produced artificially because of the crossing ranging from haploid and you may a diploid

Answer: c) A motor vehicle triploids can be produced artificially because of the crossing ranging from haploid and you may a diploid

Concern 46. a) Selfing out-of monosomic flowers establish nullisomics. b) In the a genuine diploid both the monoploid and you will haploid chromosome number was exact same. c) A motor vehicle triploids can be produced artificially by crossing anywhere between haploid and you can a good diploid. d) A rise in the amount of chromosome establishes could have been an enthusiastic important factor throughout the supply of new plant species.

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 beneficial (iv) D d) (i) D (ii) C (iii) An effective (iv) B Answer d) (i) D (ii) C (iii) A (iv) B

Question 58

Concern 48. When red eyed girls Drosophila is entered which have light eyed male, the fresh new FI offsprings could well be a good) Lady try which have white eye and you can men is actually which have red-eye. b) Men are with red eye and you can lady try having yellow attention. c) Both males and females try with red eye d) Both men and women is having white eye. Answer: c) Both males and females is which have red eye

Matter 44. a) All organisms and that has 2 or more earliest groups of chromosomes derived from one or two different specie’s. b) He has got five otherwise half dozen duplicates of its individual genome – created from the doubling of the diploid types. c) They truly are developed by inter-particular crosses and you can fertility are restored because of the chromosome doubling with colchicine cures. d) He is designed ranging from closely associated species merely.. Answer: b) He’s five otherwise half dozen copies of their own genome – triggered from the doubling of your diploid types.

Matter 50. a) Thev can be made artificially bv crossing between autotetraploid diploid. b) They are very rich on account of great number of gametes. c) Grown triploid bananas try seedless which have huge fruits than just diploid. d) Prominent doob mix try a natural autotriploid. Answer: b) He is very fruitful because of multitude of gametes.

Question 51. a) They take place in germinal cells throughout the gametogenesis. b) Take place during the Pachytene county off prophase I out of meiosis.. c) It is individually proportional with the volume from recombination between them. d) It has got common density have great benefit. Answer: c) It is yourself proportional with the regularity off recombination between the two.

Matter 55. a) Deletions exist due to chemicals, medicines radiation. b) On such basis as location out of breakage towards chromosome it’s divided into Critical removal inter calary removal c) Big deletions possess evolutionary importance. d) Deletions are registered from inside the Drosophila Maize Address: c) Huge deletions enjoys evolutionary relevance.

Question 56. How do we opposite the newest sterility away from FI hybrid? a) Hereditary Engineering b) Protoplasmic mixing c) Induced Mutation d) Created chromosomal aberration Address: d) Created chromosomal aberration

Matter 57. If the haploid count into the a cellular was 23. This new twice monosomic and you will pentasomy amount might be a beneficial) 49 and 49 b) 17 and you can 34 c) 47 and you will 46 d) 45 and you may 48 Address: a) forty-two and you can 44

Answer: b) (A) is correct, (R) ‘s the best reasons (A)

Family genes discovered intimate with her for a passing fancy chromosome and you will inherited together with her represented as the a) connected family genes b) unlinked gene c) syntenic family genes d) trans genetics Answer: a) linked family genes

Question 59. Assertion (A): Arabidopsis plant chromosomes have significantly more repeats of TTT nucleotide sequences into the the fresh telomeres. Reason (R) : Limit endonuclease chemical is employed regarding the formation out of nucleotide succession (Telomeres) mui an effective) (A) is actually completely wrong, (R) is correct b) (A) is correct, (R) ‘s the right reasons (A) c) (A) is correct, (R) ‘s the wrong cause (A) d) (A) and (R) is completely wrong.

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