The genes, which are confined to differential region of $Y$ chromosome only, are called
Mutant
Autosomal
Holandric
Completely sex-linked
If in a test tube, $mRNA$ of E. coli cells and $tRNAs$ from the body of rats are taken and sufficient number of amino acids are put, then the polypeptide synthesized will be of the nature of
Match the columns.
Column - $I$ | Column - $II$ |
$(a)$ $U U U$ | $(1)$ Serine |
$(b)$ $G G G$ | $(2)$ Methionine |
$(c)$ $(c)$ $U C U$ | $(3)$ Phenylalanine |
$(d)$ $C C C$ | $(4)$ Glycine |
$(e)$ $A U G$ | $(5)$ Proline |
Assertion: An organism with lethal mutation may not even develop beyond the zygote.
Reason: All types of gene mutations are lethal.
Break through of the year $2002$
In recent past human chromosomes have been studied by a technique using specific, often fluorescent dyes, known as