Biology
A colourblind child is born to a normal couple.
(a) Work out a cross to show how it is possible.
(b) Mention the sex of this child.
Related Questions
Name the structure responsible for each of the following:
(a) Conversion of mechanical sound waves to sound vibrations in the human ear.
(b) Maintaining equal air pressure on either side of the tympanum.
Given below are two statements which are incorrect. Rewrite the correct statements.
(a) Mendel proposed the theory of ‘Use and Disuse’ of organs.
(b) Meningitis is the inflammation of pericardium.
Mrs. Lata Mohan delivered twins – Lalit and Leela in the year 2014. The twins were not of the same gender but were born on the same day and around the same time.
(a) What kind of twins are Lalit and Leela?
(b) Are they monozygotic or dizygotic twins?
(c) Mention the sex chromosomes in each of the body cells of Lalit and Leela.
Name the inner lining of the uterus.