When the blood hemoglobin of a normal person and a sickle-cell patient is placed in an electrophoretic field,what will be observed?

If a daughter is affected by hemophilia,which of the following possibilities applies to her parents?

Which of the following is a correct method for the formation of a new species?

Male pattern baldness is a/an..... trait.

In a plant,three dominant genes $A$,$B$,and $C$ must be expressed together to produce purple flowers. If any one or all three genes are in the recessive state,the flowers become colorless.
Raw material $\xrightarrow{A} X \xrightarrow{B} Y \xrightarrow{C} Z$ (Pigment)
$A$ purple-flowered plant with genotype $AABBCC$ is crossed with a colorless plant with genotype $aabbcc$. This results in $F_1$ hybrid purple offspring. What will be the proportion of purple-flowered plants in the $F_2$ generation produced by selfing the $F_1$ generation?

$A$ human male is heterozygous for autosomal genes $A, B$, and $G$, and also for the hemophilic gene $h$. What is the probability of his sperm being $abgh$?