From a cross AABb × aaBb, the genotypes AaBB : AaBb : Aabb : aabb
From a cross AABb × aaBb, the genotypes AaBB : AaBb : Aabb : aabb will be obtained in which of the following ratio?
Options
(a) 0 : 3 : 1 : 0 […]
Genetics
From a diploid condition of 2N, which condition can arise due to non-disjunction
From a diploid condition of 2N, which condition can arise due to non-disjunction of chromosomes?
Options
(a) 3N (b) 5N (c) 2N+1 (d) N
Correct Answer:
3N
Explanation:
Disorders of chromosome number are […]
G. Mendel used the plant
G. Mendel used the plant
Options
(a) Oenothera lamarkiana (b) Lathyrus sativus (c) Mirabilis jalapa (d) Pisum sativum
Correct Answer:
Pisum sativum
Explanation:
Simple to Cultivate: Pea plant (Pisum sativum) used to be […]
Gametes are never hybrid. This is a statement of
Gametes are never hybrid. This is a statement of
Options
(a) law of dominance (b) law of independent assortment (c) law of segregation (d) law of random fertilisation
Correct Answer:
law of segregation
Genetic map of chromosome are based on
Genetic map of chromosome are based on
Options
(a) non-disjunction (b) translocation (c) dominance (d) genetic recombination
Correct Answer:
genetic recombination
Explanation:
Genetic chromosome map is a linear graphic representation of the sequence […]
Gynaeocomastia is found in
Gynaeocomastia is found in
Options
(a) Down’s syndrome (b) Klinefelter’s syndrome (c) patau’s syndrome (d) Turner’s syndrome
Correct Answer:
Klinefelter’s syndrome
Explanation:
No explanation available. Be the first to write the explanation for […]
Haemophilia is due to mutation in
Haemophilia is due to mutation in
Options
(a) Y chromosome (b) X and Y chromosomes (c) X chromosome (d) autosomal chromosomes
Correct Answer:
X chromosome
Explanation:
No explanation available. Be the first to […]
Human chromosome number was determined correctly by
Human chromosome number was determined correctly by
Options
(a) Landsteiner (b) Moorehead (c) Tijo and Levan (d) J.L. Hamerton
Correct Answer:
Tijo and Levan
Explanation:
Tijo and Levan in the year 1956 determined […]
If %age of cytosine is 18%, then %age of adenine will be
If %age of cytosine is 18%, then %age of adenine will be
Options
(a) 32% (b) 34% (c) 36% (d) 23%
Correct Answer:
34%
Explanation:
No explanation available. Be the first to write […]
If a boy’s father has haemophilia and his mother has one gene for haemophilia,
If a boy’s father has haemophilia and his mother has one gene for haemophilia, what is the chance that the boy will inherit the disease?
Options
(a) 0% (b) 50% (c) 100% (d) […]