In F₂ generation, a ratio of 1 : 4 : 6 : 4 : 1 is obtained instead of 9 : 3 : 3 : 1.
In F₂ generation, a ratio of 1 : 4 : 6 : 4 : 1 is obtained instead of 9 : 3 : 3 : 1. It indicates
Options
(a) incomplete dominance (b) […]
Biology
In man, the blue eye colour is recessive to the brown eye colour. If the boy
In man, the blue eye colour is recessive to the brown eye colour. If the boy has brown eye and his mother is blue eyed, what weould be the phenotype of his father?
Options […]
In man, which of the following genotypes and phenotypes may be the correct
In man, which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromosomes?
Options
(a) 22 pairs + XXY males (b) 22 pairs + XX females (c) […]
In Mirabilis jalapa, when red colour flowers were crossed with white flowers, pink
In Mirabilis jalapa, when red colour flowers were crossed with white flowers, pink colour flowers were obtained. It was due to
Options
(a) epistais (b) complete dominance (c) crossing over (d) incomplete dominance
In Pisum sativum there are 14 chromosomes. How many pairs with different
In Pisum sativum there are 14 chromosomes. How many pairs with different chromosomal composition can be prepared?
Options
(a) 14 (b) 7 (c) 2¹⁴ (d) 2⁷
Correct Answer:
7
Explanation:
No explanation available. […]
In sickel-cell anaemia, which of the following amino acids is substituted?
In sickel-cell anaemia, which of the following amino acids is substituted?
Options
(a) glutamic acid by valine in α-chain (b) glutamic acid by valine in β-chain (c) valine by glutamic acid in α-chain […]
In transcription the terminating factor is
In transcription the terminating factor is
Options
(a) σ factor (b) ρ factor (c) palindromic sequence (d) TATA box
Correct Answer:
ρ factor
Explanation:
No explanation available. Be the first to write the […]
Isotopes used for providing semi conservative replication of DNA are
Isotopes used for providing semi conservative replication of DNA are
Options
(a) N¹⁴ and P³¹ (b) N¹⁴ and C¹⁴ (c) N¹⁴ and N¹⁵ (d) C¹⁴ and P³¹
Correct Answer:
N¹⁴ and N¹⁵
Explanation: […]
Klinefelter’s syndrome has number of chromosomes
Klinefelter’s syndrome has number of chromosomes
Options
(a) 45 (b) 47 (c) 46 (d) 44
Correct Answer:
47
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Klinefelter’s syndrome is caused
Klinefelter’s syndrome is caused
Options
(a) in females lacking one X – chromosomes (b) in females having extra X – chromosomes (c) in males having extra Y – chromosomes (d) in males having […]