Home
Class 12
BIOLOGY
If both parents are carriers for thalass...

If both parents are carriers for thalassaemia, which is an autosomal recessive disorder what are the chances of pregnancy resulting in an affected child ?

A

`25 %`

B

`100 %`

C

No chance

D

`50 %`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

If both parents are carriers for thalassemia , which is an autosomal recessive disorder what are the chances of pregnancy resulting m an affected child ?

Which autosomal recessive disorder is caused due to excessive destruction of RBC?

Assertion : Sickle-cell anaemia is an autosome-linked recessive disorder that can be transmitted if both parents are heterozygous for the gene Reason : In sickle-cell anaemia, haemoglobin molecule undergoes polymerisation under low oxygen tension causing the change in shape in RBC

The sex of the new born child is a matter of chance and neither of the parents may be considered responsible for it.What would be the possible fusion of gametes to determine the sex of the child?

(i) The sex of the new born child is a matter of chance and neither of the parents may be considered resposible for it. What would be the possible fusion of gametes to determine to sex of the child? (ii) A pure tall plant (TT) is crossed with pure dwarf plant (tt), what would be the F_(1) and F_(2) generations? Explain.

On a long horizontally moving belt (Fig.), a child runs to and fro with a speed 9 km h^(-1) (with respect to the belt) between his father and mother located 50 m apart on the moving belt. The belt moves with a speed of 4 km h^(-1) . For an observer on a stationary platform outside, what is the (a) speed of the child running in the direction of motion of the belt ?. (b) speed of the child running opposite to the direction of motion of the belt ? (c ) time taken by the child in (a) and (b) ? Which of the answers alter if motion is viewed by one of the parents ?