Welcome to your Genetic evaloution
1.
Most acceptable theory of origin of life:
2.
“Use and disuse” was proposed by:
3.
Which trait shows codominance?
4.
Recombination frequency close to 50% means genes are:
5.
Genetic drift is most significant in:
6.
Which process produces variation essential for evolution?
7.
Founder effect is caused by:
8.
Darwin failed to explain:
9.
Genotype of AB blood group is:
10.
Which mechanism restricts gene exchange between populations?
11.
Who proposed mutation theory?
12.
Turner syndrome has karyotype:
13.
Which law states two alleles segregate independently?
14.
When a harmful recessive allele increases due to random sampling, it is:
15.
When allele frequency changes due to migration it is:
16.
Which evidence strongly supports organic evolution?
17.
Trisomy 21 is caused by:
18.
Which shows deviation from Mendelian ratio?
19.
The ratio 9:3:3:1 indicates:
20.
Evidence for evolution from comparative embryology shows:
21.
Barr body is found in:
22.
Hardy-Weinberg equilibrium requires:
23.
If p = 0.6, q = 0.4 in H-W law, frequency of pq genotype is:
24.
Which component of H-W equation denotes genotype frequency of homozygous dominant?
25.
Which evolutionary force introduces new alleles?
26.
Which mutation changes a codon to a stop codon?
27.
Homologous organs indicate:
28.
Sex-linked recessive traits appear more frequently in:
29.
A test cross involves crossing F1 with:
30.
A person with O blood group can receive blood from:
31.
Human height shows continuous variation because it is:
32.
Which stage in evolution is linked to appearance of ozone layer?
33.
In incomplete dominance, F1 phenotype is:
34.
An example of multiple alleles is:
35.
If two genes have 20% recombination, they are:
36.
Which best describes Darwin’s natural selection?
37.
Bat’s wing and bird’s wing show:
38.
Which species concept uses reproductive isolation?
39.
Sickle cell anemia is caused by:
40.
Law of segregation occurs during:
41.
Which process forms new species?
42.
Crossing over occurs during:
43.
Which structure demonstrates vestigiality?
44.
A cross gives 1:1 ratio in offspring. The F1 parent must be:
45.
Which shows maternal inheritance?
