Sickle cell anaemia is:
Sickle cell anaemia is:
Options
(a) caused by substitution of valine by glutamic acids in the beta globin chain of heamoglobin (b) caused by change in single base pair of DNA (c) characterised […]
Biology
A test cross is carried out to
A test cross is carried out to
Options
(a) determine the genotype of a plant at F2 (b) predict whether two traits are linked (c) assess the number of alleles of a gene […]
A normal-visioned man whose father was colour
A normal-visioned man whose father was colour. Blind, marries a woman whose father was also colour blind. They have their first child as a daughter. What are the chance that this child would be colour […]
A person with unknown blood group under ABO system
A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid cetrificate of his own blood type […]
The cross in plants or in Drosophila involves crossing
The cross in plants or in Drosophila involves crossing
Options
(a) between two genotypes with recessive trait (b) between two F₁ hybrids (c) the F₁ hybrid with a double recessive genotype (d) between […]
In our society women are blamed for producing female children
In our society women are blamed for producing female children. Choose the correct answer for the sex-determination in humans
Options
(a) Due to the some defect in the women (b) Due to some defect […]
Select the incorrect statement about health from the following:
Select the incorrect statement about health from the following:
Options
(a) Galactosemia is an inborn error of metabolism (b) Small population size results in random gentic drift in a population (c) Baldness is […]
Which one of the following is a wrong statement regarding mutations?
Which one of the following is a wrong statement regarding mutations?
Options
(a) Deletion and insertion of base pairs cause frame-shift mutations (b) Cancer cells commonly show chromosomal aberrations (c) UV and Gamma […]
Which one of the following conditions correctly discribes the manner
Which one of the following conditions correctly discribes the manner of determining the sex in the given example?
Options
(a) Homozygous sex chromosomes (ZZ) determine female sex in birds (b) XO type of […]
Which one of the following condition in humans, is correctly matched
Which one of the following condition in humans, is correctly matched with its chromosomal abnormality / linkage?
Options
(a) Klinefelters syndrome-44 autosomes a XXY (b) Colour blindness-Y-linked (c) Erythroblastosis foetalis-X-linked (d) Down syndrome-44 autosomes […]