Sketch and Label the Structure of Chromosome.

Sketch and label the structure of chromosome.

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2014-2015 (October)

Q 6.2 | 2 marks

Distinguish between X andY chromosomes. (Mention any 'two' points.)

Give an account of artificial chromosomes in the transfer of genetic material.

An allohexaploidy contains

If the haploid number in a cell is 18. The double monosomic and trisomic number will be

Mention the name of man-made cereal. How it is formed?

Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.

Extranuclear inheritance occurs in ______.

Extranuclear inheritance is a consequence of presence of genes in ______.

A couple has two daughters. What is the probability that the third child will also be a female?

Consider the following information and answer the question that follows:

Reshma’s mother is normal, but her father is suffering from PKU.
Reshma is suffering from PKU. She has two younger brothers who are identical twins; both are suffering from PKU. Reshma’s two elder sisters are normal.
Reshma marries Robert, who is normal. Reshma gives birth to a son named Jason who is normal. After some time, Reshma and Robert have two more children: a daughter with symptoms of PKU and a son without any symptoms of PKU.

Make a single pedigree chart using the above information to show the pattern of inheritance of phenylketonuria (PKU) in the family of Reshma.