Multiple Choice QuestionsWhat was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
Shortening of jaws
Binocular vision
Increasing cranial capacity
Increasing cranial capacity
The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating for heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was
Homo habilis
Neanderthal human
Cro-magnon humans
Cro-magnon humans
If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complentary RNA strand sequence?
TTAGU
UAGAC
AACTG
AACTG
In a population of 1000 individuals 360 belongs to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is
0.4
0.5
0.6
0.6
Forelimbs of cat, lizard used in walking forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of
analogous organs
adaptive radiation
homologous organs
homologous organs
Which one of the following are analogous structures?
Wings of bat and wings of pigeon
Gills of prawn and lungs of man
Thorns of Bougainvillea and tendrils of Cucurbita
Thorns of Bougainvillea and tendrils of Cucurbita
Which of the following had the smallest brain capacity?
Homo erectus
Homo sapiens
Homo neanderthalensis
Homo neanderthalensis
A population will not exist in Handy - Weinberg equilibrium if
individuals mate selectively
there are no mutations
there is no migration
there is no migration
What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
shortening of jaws
Binocular vision
Increasing brain capacity
Increasing brain capacity
C.
Increasing brain capacity
The first human- like being was the hominid, called Homo habilis. The brain capacities were between 650 - 800 cc. They probably did not eat meat. Fossils discovered in Java in 1891 revealed the next stage, i.e, Homo erectus. Homo erectus had a large brain and probably ate meat. The Neanderthal man with a brain size of 1400 cc lived in near east and central Asia between 1,00,000-40,000 year back. They used hides to protect their body and buried their dead. Homo sapiens arose in Africa and moved across continents and developed into distinct races. During ice age between 75,000 - 10,000 years back modern HOmo sapiens arose
Darwin's finches are a good example of
industrial melanism
connecting link
adaptive radiation
adaptive radiation
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