In human female, barr bodies are formed by
In human female, barr bodies are formed by
- [AIPMT 1996]
- A
Inactivation of mother's $X$ chromosome
- B
Inactivation of father's $X$ chromosome
- C
Inactivation of both mother's and father's $X$ chromosomes
- D
Inactivation of either mother's or father's $X$ chromosome
Similar Questions
Mirabilis jalapa is a good example of
Mirabilis jalapa is a good example of
- [AIIMS 2001]
The evidence that crossing over occurs at four stranded stage and not at two stranded stage of the chromosomes, comes from
The evidence that crossing over occurs at four stranded stage and not at two stranded stage of the chromosomes, comes from
Match the columns :
Column $I$
Column $II$
$(1)$ Lethal mutation
$(a)$ Mutation caused by
external factors
$(2)$ Spontaneous mutation
$(b)$ They are metabolic
errors
$(3)$ Induced mutation
$(c)$ As a result the
mutant dies
$(4)$ Biochemical mutation
$(d)$ Most of the
mutations occurs in
nature are of this
type.
Match the columns :
| Column $I$ |
Column $II$ |
| $(1)$ Lethal mutation | $(a)$ Mutation caused by external factors |
| $(2)$ Spontaneous mutation | $(b)$ They are metabolic errors |
| $(3)$ Induced mutation | $(c)$ As a result the mutant dies |
| $(4)$ Biochemical mutation | $(d)$ Most of the mutations occurs in nature are of this type. |
If in a child of $10$ years ages of the intelligence is of $14$ years child, the $I.Q.$ of this child would be
If in a child of $10$ years ages of the intelligence is of $14$ years child, the $I.Q.$ of this child would be