What is the probability of a couple having three daughters in their three children?

Which mammals have more yolk than cytoplasm in their eggs?

Match the following columns:

Column-$I$	Column-$II$
$A$. Mendel	$i$. Allele
$B$. Bateson	$ii$. Factors
$C$. Johannsen	$iii$. Chromosome
$D$. Sutton and Boveri	$iv$. Gene

Read the following statements carefully $:-$
$(a)$ Linkage is physical association of genes on a chromosome.
$(b)$ In $Drosophila$, genes of body colour and eye colour are tightly linked on $X$-chromosome.
$(c)$ In honey bee a fertilised egg develops as a male $(drone)$.
$(d)$ In grasshopper males have only one $X$-chromosome besides the autosomes.
$(e)$ $Drosophila$ can complete their life cycle in about two months.
Choose the correct option having all correct options.

Haemolytic jaundice is caused due to a dominant gene but only $10\%$ of the people who carry the gene actually develop the disease. $A$ heterozygous man marries a homozygous normal woman; what proportion of the children would be expected to develop the haemolytic disease?

Traits controlled by genes located on autosomes are said to be