Chapter 12 — LO 3 — Explain Dosage Compensation and Its Effects on Phenotype

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/4

encourage image

There's no tags or description

Looks like no tags are added yet.

5 Terms

1
New cards

What is dosage compensation?

A mechanism balancing expression of X-linked genes across different X-chromosome numbers.

2
New cards

What is X-inactivation?

Silencing most genes on one X chromosome in typical XX mammalian cells.

3
New cards

What is a Barr body?

A highly condensed, mostly inactive X chromosome.

4
New cards

Why do calico cats have different fur-color patches?

Different cells inactivate different X chromosomes, creating mosaic expression.

5
New cards

What does XIST RNA do?

It coats the X chromosome being inactivated and contributes to silencing.