Question

Early Drosophila development involves gene expression. Which of the following classes of genes includes genes whose products are transcriptional regulators? Please choose all correct answers.

Question 13 options:

A)	Segment-polarity genes

B)	Homeotic genes

C)	Maternal genes

D)	Pair-rule genes

E)

Gap genes

Answer 1

Option B ,C and D are correct answer.

Homeotic genes

Maternal Gene's

Pair rule Gene's

Explanation

--Homeotic genes products are also transcription factor in nature , they control patterns of body formation during development.
-Maternal Gene's ( bicoid or nanose ) are transcription factors

--Pair rule gene- these also codes for protein yhst act as transcription factor . They regulate expression of segments polarity genes.

--Segment polarity gene- they are not transcription factors.

Their function is to specify tissue pattern in segmented organism( in each repeated part).

--Gap genes- involved in development of segmented embryo. Mutaion in gap leas to liss of particular part of body and formation of gap in the body . They are also do not function as transcription factors.