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