Question 46. a) Selfing off monosomic plants build nullisomics. b) From inside the a true diploid both the monoploid and you can haploid chromosome number is actually exact same. c) A vehicle triploids can be produced artificially by crossing anywhere between haploid and you can an excellent diploid. d) An increase in how many chromosome sets has been an important aspect on provider of brand 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) A (iv) D d) (i) D (ii) C (iii) A (iv) B Respond to d) (i) D (ii) C (iii) Good (iv) B
Concern 48. Whenever red-eyed female Drosophila is crossed with white eyed men, brand new FI offsprings was good) Ladies are with white-eye and you can boys was which have red-eye. b) Men was having red eye and you may women try with red eyes. c) Both males and females is which have red eye d) Both males and females try which have white-eye.
Matter forty two. a) The organisms and therefore have two or more very first groups of chromosomes based on several additional specie’s. b) They have four or six duplicates of the individual genome – caused from the increasing of your diploid kinds. c) They truly are created by inter-specific crosses and you may virility try recovered because of the chromosome increasing having colchicine treatment. d) He is formed ranging from closely associated species just.. Answer: b) He has got five otherwise half dozen copies of their individual genome – created from the increasing of the diploid species.
Concern 50. a) Thev can be made artificially bv crossing anywhere between autotetraploid diploid. b) He or she is extremely fruitful due to plethora of gametes. c) Grown triploid bananas try seedless with huge fruit than diploid. d) Prominent doob get across try an organic autotriploid. Answer: b) He’s highly rich because of multitude of gametes.
Matter 51. a) It take place in germinal structure during gametogenesis. b) Occur during Pachytene condition of prophase I out-of meiosis.. c) It is really proportional into the frequency of recombination between the two. d) It has universal density provides higher benefit. Answer: c) It is in person proportional with https://datingranking.net/escort-directory/carmel/ the volume out of recombination between the two.
Answer: c) Both males and females was which have red-eye
Question 55. a) Deletions exists because of chemicals, medicines radiation. b) On such basis as area out-of breakage with the chromosome it’s divided in to Terminal deletion inter calary deletion c) Huge deletions enjoys evolutionary benefit. d) Deletions are registered in the Drosophila Maize Answer: c) Huge deletions enjoys evolutionary advantages.
Concern 56. How can we contrary new sterility from FI crossbreed? a) Genetic Technology b) Protoplasmic mix c) Triggered Mutation d) Caused chromosomal aberration Respond to: d) Caused chromosomal aberration
Concern 59
Matter 57. In the event the haploid number inside the a cell is actually 23. The newest double monosomic and you may pentasomy count is a beneficial) 44 and you will forty two b) 17 and you may 34 c) 47 and you will 46 d) forty-five and you may forty-eight Answer: a) 44 and you can 44
Concern 58. Genetics located romantic together on the same chromosome and you will passed down along with her portrayed given that an effective) connected genes b) unlinked gene c) syntenic family genes d) trans genetics Answer: a) connected genes
Assertion (A): Arabidopsis bush chromosomes convey more repeats out-of TTT nucleotide sequences into the the fresh telomeres. Need (R) : Restriction endonuclease chemical is employed about formation out of nucleotide succession (Telomeres) mui good) (A) was incorrect, (R) is right b) (A) is right, (R) is the correct reasons (A) c) (A) is right, (R) ‘s the wrong factor (A) d) (A) and you will (R) was wrong. Answer: b) (A) is correct, (R) ‘s the right cause (A)
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