Cross between individual with dominant trait and recessive (homozygous) parent is
Options
(a) test cross (b) back cross (c) F1 cross (d) F2 cross
Correct Answer:
test cross
Explanation:
No explanation available. Be […]
A condition where a certain gene is present in only a single copy in a diploid cell is called
Options
(a) heterozygous (b) monozygous (c) homozygous (d) hemizygous
Correct Answer:
hemizygous
Explanation:
No […]
A gene that specifies amino acid sequence of a polypeptide chain is termed as
Options
(a) structural gene (b) regulator gene (c) operator gene (d) split gene
Correct Answer:
structural gene
Explanation:
No […]
An important example of pleiotropy is
Options
(a) thalassaemia (b) sickle-cell anaemia (c) haemophilia (d) leukaemia
Correct Answer:
sickle-cell anaemia
Explanation:
No explanation available. Be the first to write the explanation for this […]
Colour blindness, in male, can be represented as
Options
(a) XᶜY (b) XᶜYᶜ (c) X⁺Y (d) X⁺X
Correct Answer:
XᶜY
Explanation:
No explanation available. Be the first to write the explanation for this […]
In the DNA molecule
Options
(a) the total amount of purine nucleotides and pyrimidine nucleotides is not always equal (b) there are two strands which run parallel in the 5′ → 3′ direction […]
What is not true for genetic code?
Options
(a) It is nearly universal (b) It is degenerate (c) It is unambiguous (d) A codon in mRNA is read in a non contiguous fashion
The okazaki fragments in DNA chain growth
Options
(a) polymerize in the 3′-to-5′ direction and forms replication fork (b) prove semi-conservative nature of DNA replication (c) polymerize in the ‘5-to-3′ direction and explain […]
Read the following four statements (A-D). (A) In transcription, adenosine pairs with uracil. (B) Regulation of lac operon by repressor is referred to as positive regulations. (C) The human genome has approximately 50,000 genes. (D) […]
Which of the following forms the basis of DNA Finger printing?
Options
(a) The relative proportions of purines and pyrimidines in DNA. (b) Satellite DNA occurring as highly rpeated short DNA segments (c) […]
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