Chromosomal Mutation

Q.

Differentiate between trisomic and triploid conditions?

Q.

What happens if a person has more than 46 chromosomes?

Q.

What is the function of chromosome 4?

Q.

Name few Mendelian disorders.

Q. Homologous chromosomes are similar but not identical.

1. True
2. False

Q.

Can a person with down syndrome look normal?

Q.

What are the early signs of Ataxia?

Q. The failure of chromosomes to separate during cell division is known as .

1. non-disjunction
2. aneuploidy
3. ploidy

Q.

At what age does a child with Down syndrome talk?

Q. Which among the following statement(s) is/are correct about Down syndrome?

1. Down syndrome is also known as trisomy of 21st chromosome.
2. $1^{st}$discovered chromosomal abnormality in human beings.
3. The affected individual has 46 chromosomes in their cells.

1. Both 1 and 3
2. 1, 2 and 3
3. Both 1 and 2
4. Only 3

Q. When an individual gets an extra chromosome from a parent, the resulting condition is called .

1. disjunction
2. non-disjunction
3. aneuploidy
4. polyploidy

Q. Heterologous chromosomes are similar to each other in shape and organisation.

1. True
2. False

Q. Homologous chromosomes are similar but not identical.

1. True
2. False

Q. Homologous chromosomes are similar but not identical.

1. False
2. True

Q. Down syndrome is caused due to the absence of ${21}^{st}$chromosome.

1. False
2. True

Q. Person suffering from down syndrome has a short stature.

1. False
2. True

Q. An increase in a whole set of chromosomes is known as

1. aneuploidy
2. multiploidy
3. polyploidy
4. triploidy

Q. Identify the diseases that follow Mendelian inheritance.

1. Haemophilia
2. Colour blindness
3. Thalassemia
4. Sickle-cell
5. Phenylketonuria
6. Down syndrome
7. Diabetes
8. Turner syndrome