(A) Species
(B) Subspecies
(C) Order
(D) Phylum
Category: Biology Mcqs
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Most of the biological diversity gas probably arisen by?
(A) Phyletic evolution
(B) Anagenesis
(C) Cladogenesis
(D) Hybridization
The amniotes egg first evolved in:
(A) Ambhibians
(B) Bony Fishes
(C) Birds
(D) Reptiles
Which of the following group is entirely extinct?
(A) Ratite birds
(B) Agnathans
(C) Cephalochordates
(D) Placoderms
Evolutionary mechanisms consists of population size, genetic drift and?
(A) Partial drift of genes
(B) Ecosystem
(C) Mutation
(D) Natural selection
Selection acts directly on?
(A) Entire genome
(B) Each allele
(C) Genotype
(D) Phenotype
In a population that is Hardy Weinberg equilibrium, 15% of the individuals show the recessive trait. What is the frequency of the dominant allele in a population?
(A) 0.4
(B) 0.6
(C) 0.36
(D) 0.84
If spermatogenesis is normal in all cells, how many sperms will result from 50 primary spermatocytes and 50 spermatids?
(A) 100, 100
(B) 200, 100
(C) 200, 50
(D) 100, 50