A man with blood group ‘A’ marries a woman with blood group ‘B’. What are all the possible blood groups of their offsprings?
Options
(a) A,B and AB only (b) A,B,AB and O […]
A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind ?
Options
A human female with Turner’s syndrome:
Options
(a) has 45 chromosomes with XO (b) has one additional X chromosome. (c) exhibits male characters (d) is able to produce children with normal husband.
Correct […]
A gene showing codominance has:
Options
(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 […]
Which of the following had the smallest brain capacity ?
Options
(a) Homo sapiens (b) Homo neanderthalensis (c) Homo habilis (d) Homo erectus
Correct Answer:
Homo habilis
Explanation:
Brain capacity in decreasing order : […]
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:
Options
(a) Analogous organs (b) Adaptive radiation (c) Homologous […]
Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion ofstratospheric ozone ?
Options
(a) Reduced Immune System (b) Damageto […]
The UN conference of Parties on climate change in the year 2012 was held at:
Options
(a) Doha (b) Lima (c) Warsaw (d) Durban
Correct Answer:
Doha
Explanation:
This conference occured from 20 Nov […]
High value of BOD(Biochemical OxygenDemand) indicates that :
Options
(a) Water is highly polluted (b) Water is less polluted (c) Consumption of organic matter in the water is higher by the microbes (d) […]
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