Advertisements
Advertisements
प्रश्न
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
Advertisements
उत्तर
50%
Explanation:
A haemophilic male (XhY) and a carrier lady (XXh) have a 50% of probability of conceiving a haemophiliac daughter. This is because one of the two probable daughter genes codes for haemophilia, whereas the other does not. Half of the daughters are carriers and half are hemophilic.
APPEARS IN
संबंधित प्रश्न
Define the term ‘genome’.
Choose the correct options of the following question:
Study the given monohybrid cross:
A test cross for this Fj will be:
Mention the name of man-made cereal. How it is formed?
Telocentric chromosome differs from acrocentric chromosome in that ____________.
Which of the following is a primary constriction?
From the following identify the statements that are CORRECT with respect to homologous and non-homologous region of X and Y chromosomes.
i. Non-homologous region of X chromosome is longer and contains more genes than that of non-homologous region of Y chromosome.
ii. X-linked genes are present on nonhomologous region of X-chromosome.
iii. Y-linked genes are present on homologous region of Y-chromosome.
iv. Crossing over occurs only between homologous regions of X and Y chromosomes.
Chromosomal theory of inheritance was given by ______.
Genes located on same locus but having different expressions are:
Despite differing in size and morphology, what equal contribution do male and female gametes make to offspring according to the Chromosomal Theory?
During which cellular process do homologous chromosomes separate and distribute one chromosome from each pair to resulting gametes?
