Doctors use stethoscope to hear the sounds produced during each cardiac cycle.The second sound is heard when:
Options
(a) Ventricular wall vibrate due to gushing in of blood from atria (b) Semilunar valves […]
Which one of the following is not applicable to RNA?
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(a) 5′ phosphoryl and 3′ hydroxylends (b) Heterocyclic nitrogenous bases (c) Chargaff’s rule (d) Complementary base pairing
Correct Answer:
Chargaff’s rule
Explanation: […]
The wings of a bird and the wings of an insect are :
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(a) analogous structures and represent convergent evolution (b) phylogenetic structures and represent divergent evolution (c) homologous structures and represent […]
The term ‘linkage’ was coined by:
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(a) T. Boveri (b) G. Mendel (c) W. Sutton (d) T.H. Morgan
Correct Answer:
T.H. Morgan
Explanation:
No explanation available. Be the first to write the […]
In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.
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(a) X- linked recessive (b) Autosomal recessive (c) X-linked dominant (d) Autosomal dominant
Correct […]
In his classic experiments on sea plants,Mendel did not use
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(a) Pod length (b) Seed shape (c) Flower position (d) Seed colour
Correct Answer:
Pod length
Explanation:
No explanation available. Be the […]
Identify the correct order of organisation of genetic material from largest to smallest :
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(a) Genome, chromosome, nucleotide, gene (b) Genome, chromosome, gene, nucleotide (c) Chromosome, genome,nucleotide, gene (d) Chromosome, gene,genome, nucleotide
A pleiotropic gene:
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(a) is a gene evolved during Pliocene (b) controls a trait only in combination with another gene (c) controls multiple traits in an individual (d) is expressed only in […]
A gene showing codominance has:
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(a) alleles tightly linked on the same chromosome (b) alleles that are recessive to each other (c) both alleles independently expressed in the heterozygote (d) one allele […]
A colour blind man marries a woman with normal sight who has no history of colour blindness inher family. What is the probability of their grandson being colour blind ?
Options
(a) 1 […]
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