In a dihybrid cross of plants having yellow round and green wrinkled seeds,$16$ combinations were found. What type of plants were found in the following ratios?

Which of the following pairs of organs are $NOT$ homologous organs?

When a sperm carrying an $X$ chromosome fertilizes an ovum,what will be the sex of the embryo that develops from the zygote?

Study the following cross showing self-pollination in $F_1$ generation,fill in the blank,and answer the question that follows:
Parents: $RRYY \times rryy$
(Round,yellow) (Wrinkled,green)
$F_1$: $RrYy \times$ ?
(Round,yellow)

Name any five vegetables generated from a common ancestor through artificial selection rather than natural selection. Also,mention the features for which each vegetable is selected.

"It is a matter of chance whether a couple will give birth to a male child or a female child." Justify this statement with the help of a flow chart showing the fusion of sex chromosomes.