Home
Class 12
BIOLOGY
Of both normal parents, the chance of a ...

Of both normal parents, the chance of a male child becoming colour blind are

A

no

B

possible only when all the four grand parents had normal vision

C

possible only when father's mother was colour blind

D

possible only when mother's father was colour blind

Text Solution

Verified by Experts

The correct Answer is:
D
Colour blindness is a X-linked recessive disease and the chance of a male child becoming colour blind of a normal parents is only when mother's father was colour blind.
This is criss-cross inheritance in which genes are transferred to a child from his material grandfather through his mother.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PLANT KINGDOM

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise MCQ|107 Videos

  • RE-NEET 2020

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise All Questions|90 Videos

Similar Questions

Explore conceptually related problems

woman with normal vision and albinism marries a man who is colour blind but have normal skin pigmentation. If their son is with normal skin pigmentation and normal vision then what will be the chances of their daughter being colour blind and albinic. [Albinism is recessive autosomal disorder at

Father of a child is colourblind and mother is carrier for colourblindness, the probability of the child being colour blind is

Knowledge Check

  • Of both normal parents the chances of a male child becoming colour blind are

    A
    No
    B
    Possible only when all the four grand parents had normal vision
    C
    Possible only when father's mother was colour blind
    D
    Possible only when mother 's father was colour blind

  • If both parents of a male child are normal, what are the chances of the child being colour blind ?

    A
    It is possible only if father's mother was colour blind
    B
    It is possible only if mother's father was colour blind
    C
    It is impossible
    D
    It is possible even when at the four grandparents had normal vision

  • If both parents of a male child are normal,what are the chances of the child being colour blind ?

    A
    It is impossible
    B
    it is possibel only if mother's father was colour blind
    C
    It is possible only if father's mother was colour blind
    D
    It is possible even when all the four grand parents had normal vision

    • Similar Questions

    Explore conceptually related problems

    A normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny ?

    If a man who is colour blind marries a woman who is pure normal for colour vision ,the chance of their sons having colour blindess is :

    A normal visioned man whose father was colour blind, marries a woman whose father was also colour blind .They have their first child as a daughter .What are the chances that this child would be colour blind ?

    A normal-visioned man whose father was colour blind, marries a woman whose father was also colour blind. They have their first child as a daughter. What are the chances that this child would be colour blind?

    A normal visioned man whose father was colour blind, marries a woman whose father was also colour, blind. They have their first child as a daughter. what are the chance that this child would be colour blind?

    Home
    Profile