During DNA replication, the term leading strand is applied to the one which replicates in
Options
(a) 5′ → 3′ direction discontinuously (b) 3′ → 5′ direction continuously (c) 5′ → 3′ direction […]
Escherichia coli with completely radioactive DNA was allowed to replicate in non-radioactive medium for two generations. Percentage of bacteria with radioactive DNA is
Options
(a) 50% (b) 12.50% (c) 100% (d) 25%
Correct […]
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 […]
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
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
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
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
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
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
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 […]
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