Read the questions and choose from the following, they can be 1 or more: 1. Gap

Question

Read the questions and choose from the following, they can be 1 or more:
1. Gap genes
2. Pair-rule genes
3. Segment-polarity genes
4. Hox genes

a) In an embryo from a homozygous Bicoid mutant female, which class(es) of gene expression is (are) abnormal?

b)) If you had a mutation affecting anterior-posterior patterning of the Drosophila embryo in which every other segment of the developing mutant larva was missing, would you consider it a mutation in a gap gene, a pair-rule gene, a segment-polarity gene, or a hox gene?

Explanation / Answer

a) All classes of gene expression are abnormal i.e Gap genes, Pair-rule genes, Segment-polarity genes and Hox genes. b) Mutation in gap genes. Because these genes specify broad regions (multiple adjacent segments) along the anterior-posteriaor axis of the embryo. Interactions among the gap genes regulate transcription of the pair-rule genes.

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.