Question 46. a) Selfing from monosomic herbs build nullisomics. b) In the a real diploid the monoploid and you can haploid chromosome count is exact same. c) A car triploids can be produced forcibly by the crossing ranging from haploid and you will a good diploid. d) A boost in what number of chromosome kits could have been an enthusiastic essential requirement about resource of the latest 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 (iv) D d) (i) D (ii) C (iii) A great (iv) B Address d) (i) D (ii) C (iii) An excellent (iv) B
Matter 58
Question forty-eight. When red eyed ladies Drosophila is crossed which have light eyed male, the latest FI offsprings might be a good) Female is with white-eye and you can men was having red eye. b) People is actually having red-eye and you may people is which have yellow eyes. c) Both men and women is with red-eye d) Both men and women are that have white-eye. Answer: c) Both men and women was having red-eye
Question forty-two. a) All the bacteria and that features 2 or more first categories of chromosomes based on a couple more specie’s. b) They have four or half dozen duplicates of their own genome – triggered because of the increasing of your diploid variety. c) They are developed by inter-certain crosses and virility try recovered of the chromosome doubling that have colchicine treatment. d) He is molded ranging from directly relevant types simply.. Answer: b) He’s five or half dozen duplicates of its own genome – caused of the doubling of the diploid kinds.
Question 50. a) Thev can be produced forcibly bv crossing between autotetraploid diploid. b) He could be extremely fertile on account of great number of gametes. c) Expanded triploid bananas is actually seedless with huge fruit than just diploid. d) Prominent doob get across try a natural autotriploid. Answer: b) He or she is highly rich because of large number of gametes.
Concern 51. a) They occur in germinal cells through the gametogenesis. b) Take place through the Pachytene county regarding prophase We of meiosis.. c) It’s personally proportional on the frequency away from recombination among them. d) It has common occurrence features high significance. Answer: c) It’s myself proportional for the volume out-of recombination between them.
Concern 55. a) Deletions can be found due to chemical compounds, drugs rays. b) On such basis as area out-of damage with the chromosome it is divided into Critical deletion inter calary removal c) Larger deletions keeps evolutionary relevance. d) Deletions is actually submitted inside the Drosophila Maize Answer: c) Larger deletions keeps evolutionary value.
Concern 56. How can we contrary the brand new infertility out-of FI hybrid? a) Hereditary Technologies b) Protoplasmic mix c) Created Mutation d) Created chromosomal aberration Answer: d) Triggered chromosomal aberration
Concern 57. If haploid matter inside the a mobile is 23. This new twice monosomic and you can pentasomy amount might possibly be a great) 49 and you may 44 b) 17 and you will 34 c) 47 and you can 46 d) 45 and you may 48 Respond to: a) 44 and 44
Answer: b) (A) is right, (R) is the correct reasons (A)
Family genes located personal with her for a passing fancy chromosome and you can inherited along with her illustrated as the a) connected genetics b) unlinked gene c) syntenic genes d) trans promo kódy trueview genes Address: a) connected genes
Concern 59. Assertion (A): Arabidopsis bush chromosomes do have more repeats away from TTT nucleotide sequences within the the fresh telomeres. Reason (R) : Restrict endonuclease chemical is employed throughout the creation regarding nucleotide series (Telomeres) mui good) (A) try incorrect, (R) is right b) (A) is right, (R) ‘s the right factor (A) c) (A) is correct, (R) is the completely wrong reason (A) d) (A) and (R) is actually incorrect.