A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind ?
A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind ?
- [NEET 2015]
- A
$Nil$
- B
$0.25$
- C
$0.5$
- D
$1$
Similar Questions
:Match the columns :
Column $I$
Column $II$
$(a)$
Sickle cell anaemia
$(p)$
Homogentisic acid
$(b)$
Alkaptonuria
$(q)$
Lack of Melanin
$(c)$
Albinism
$(r)$
Accumulation of Amino acid
$d)$
Phenyl Ketonuria
$(s)$
Defective haemoglobin
:Match the columns :
| Column $I$ |
Column $II$ |
||
| $(a)$ | Sickle cell anaemia | $(p)$ | Homogentisic acid |
| $(b)$ | Alkaptonuria | $(q)$ | Lack of Melanin |
| $(c)$ | Albinism | $(r)$ | Accumulation of Amino acid |
| $d)$ | Phenyl Ketonuria | $(s)$ | Defective haemoglobin |
Colour blindness is
Colour blindness is
:Match the columns :
Column $I$
Column $II$
$(a)$ Sickle cell anaemia
$(x)$ Homogentisic acid
$(b)$ Alkaptonuria
$(y)$ Melanin pigmentsare absent
$(c)$ Albinism
$(z)$ More amount of phenyl alanine
$(d)$ Phenyl Ketonuria
$(w)$ Defective haemoglobin
:Match the columns :
| Column $I$ |
Column $II$ |
| $(a)$ Sickle cell anaemia | $(x)$ Homogentisic acid |
| $(b)$ Alkaptonuria | $(y)$ Melanin pigmentsare absent |
| $(c)$ Albinism | $(z)$ More amount of phenyl alanine |
| $(d)$ Phenyl Ketonuria | $(w)$ Defective haemoglobin |
In pedigree analysis, the square, blackened and horizontal lines represents
In pedigree analysis, the square, blackened and horizontal lines represents
If a colour blind man marries a woman who is homozygous for normal vision, the probability of their son being colour blind is .........
If a colour blind man marries a woman who is homozygous for normal vision, the probability of their son being colour blind is .........