A spontaneous mutation results in a couple having only female progeny. When the doughter marries and has childeren, non of them are males. However , i

Question

A spontaneous mutation results in a couple having only female progeny. When the doughter marries and has childeren, non of them are males. However , i

A spontaneous mutation results in a couple having only female progeny. When the doughter marries and has childeren, non of them are males. However , in the third generation there are few male offspring . What is the most likely ex planation of this observation-
A. The mutation reverse spontaneously in the third generation
B. The mutatio occures on the X chromosome and is both recessive and lethal
C. The mutatio occures on the X chromosome and is both recessive and dominant
D. The mutatio occures on an autosome and is dominant

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

Determine whether the following reaction will be spontaneous or non- spontaneous under standard conditions. `Zn_((s)) +Cu^(2+) to Zn^(2+) + Cu_((s)) "

2 Answers 4 Views

For a certain reaction `Delta H^(@) =- 224 kJ ` and `Delta S^(@) =- 153 JK` At what temperature will it change from spontaneous to non- spontaneous ?

2 Answers 5 Views

A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberatio

2 Answers 4 Views

After meiosis-II doughter cells differ from the parent cells and each other in their genotypes. This can occur because of which one of the following m

2 Answers 4 Views

The standard reduction potential of `Cu^(+)//Cu` couple is 0.34 V at `25^(@)C` calculate the reduction potential at `pH=14` for this couple. (Given `K

2 Answers 4 Views

A breeder crossed a pure bred tall plant having white flowers toa pure short plant having bule flowers. He obtained 202 `F_(1)` progeny and found and

2 Answers 4 Views

A couple has two sons and two daughters. Only one son is colour blind and the rest of the siblings are normal. Assuming colour blindness is sex-linked

2 Answers 4 Views

Which of the following sets of conditions would result in a reaction that is spontaneous at high temperature but non-spontaneous at low temperature?

2 Answers 4 Views

A and B are two salts. A reacts both with dil `H_2SO_4` and conc. `H_2SO_4` to give reddish brown vapours. However, B reacts only with conc. `H_2SO_4`

2 Answers 5 Views

A colour blind man marries a normal woman whose father was colour blin . What percentage of children is exdpected to bel colour blind?

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
The mutation that occurred in on x-chromosome and is both recessive and lethal since, female is carrier it survives but due to hemizygous condition male is unableto survive.
`XY^(m)rarr` carrier (survives)
`X^(m)Yrarr` dies
While in third generation, the possibility of male child occurs.

4 views Answered 2023-02-05 15:29