Class 12BiologyPrinciples of Inheritance and VariationMix Examples- Principles of Inheritance and Variation
MediumWhich of the following is a sex-influenced character?
- AAppearance of beard
- BBaldness in males
- CDocile behavior of females
- DLow $BMR$ in females
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Similar Questions
Presence of a single allele of a character in a diploid organism is known as $:$
Medium
View SolutionMatch the terms in Column $I$ with its phenotypic ratio in Column $II$ correctly and choose the correct option.
Column $I$ Column $II$ $i$. Monohybrid test cross $a$. $1:2:1$ $ii$. Incomplete dominance $b$. $1:2$ $iii$. Law of independent Assortment $c$. $1:1$ $iv$. Sickle Cell Anaemia $d$. $9:3:3:1$
| Column $I$ | Column $II$ |
| $i$. Monohybrid test cross | $a$. $1:2:1$ |
| $ii$. Incomplete dominance | $b$. $1:2$ |
| $iii$. Law of independent Assortment | $c$. $1:1$ |
| $iv$. Sickle Cell Anaemia | $d$. $9:3:3:1$ |
$(A)$ $A$ pleiotropic gene exhibits multiple phenotypic effects.
$(B)$ Multiple alleles express similar phenotypic expressions.
$(C)$ Polygenes exhibit continuous variation.
$(B)$ Multiple alleles express similar phenotypic expressions.
$(C)$ Polygenes exhibit continuous variation.
Medium
View SolutionMatch the following:
Column – $I$ Column – $II$ $(1)$ Failure of cytokinesis $(p)$ To study inheritance of particular traits $(2)$ Trisomy of $21$ $(q)$ Polyploidy $(3)$ Error of metabolism $(r)$ Down's syndrome $(4)$ Pedigree analysis $(s)$ Phenylketonuria
| Column – $I$ | Column – $II$ |
|---|---|
| $(1)$ Failure of cytokinesis | $(p)$ To study inheritance of particular traits |
| $(2)$ Trisomy of $21$ | $(q)$ Polyploidy |
| $(3)$ Error of metabolism | $(r)$ Down's syndrome |
| $(4)$ Pedigree analysis | $(s)$ Phenylketonuria |
Medium
View SolutionWhat is the number of chromosome pairs in maize $(Zea \ mays)$?
Easy
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