Questions from Genetics

Q: If a repressor prevents TFIID from binding to the TATA box,

If a repressor prevents TFIID from binding to the TATA box, why does this inhibit transcription?

Q: The MyoD gene in mammals plays a role in skeletal muscle-

The MyoD gene in mammals plays a role in skeletal muscle-cell differentiation, whereas the Hox genes are homeotic genes that play a role in the differentiation of particular regions of the body. Expla...

Q: What is a totipotent cell? In each of the following types

What is a totipotent cell? In each of the following types of organisms, which cells are totipotent? A. Humans B. Corn C. Yeast D. Bacteria

Q: What is a meristem? Explain the role of meristems in plant

What is a meristem? Explain the role of meristems in plant development.

Q: Discuss the morphological differences between animal and plant development. How are

Discuss the morphological differences between animal and plant development. How are the developmental processes different at the cellular level? How are they similar at the genetic level?

Q: If you observed fruit flies with the following developmental abnormalities, would

If you observed fruit flies with the following developmental abnormalities, would you guess that a mutation has occurred in a segmentation gene or a homeotic gene? Explain your guess. A. Three abdomi...

Q: Which of the following statement(s) is/are true

Which of the following statement(s) is/are true with regard to positional information in Drosophila? A. Morphogens are a type of molecule that conveys positional information. B. Morphogenetic gradie...

Q: Discuss the morphological differences between the parasegments and segments of Drosophila.

Discuss the morphological differences between the parasegments and segments of Drosophila. Discuss the evidence, providing specific examples, that suggests the parasegments of the embryo are the subdi...

Q: Here are schematic diagrams of mutant Drosophila larvae. /

Here are schematic diagrams of mutant Drosophila larvae. The left side of each pair shows a wild-type larva, with gray boxes showing the sections that are missing in the mutant larva. Which type of g...

Q: Explain what a morphogen is, and describe how it exerts its

Explain what a morphogen is, and describe how it exerts its effects. What do you expect will happen when a morphogen is expressed in the wrong place in an embryo? List five examples of morphogens that...