Chapter 5: The Mitotic Cell cycle Flashcards
(7 cards)
1
Q
chromosomes are made of
A
chromatin
2
Q
chromatin
A
a combination of DNA and special structural proteins called histones
3
Q
purpose of histone proteins
A
helps DNA fit in the nucleus, DNA can condense/coil tightly and not get tangled in knots
4
Q
telomeres
A
repeating nucleotide base sequences located at the ends of linear DNA molecules
5
Q
telomeres protect against…
A
gene erosion
6
Q
telomerase
A
an enzyme that can re-extend the telomeres so that cell division can continue indefinitely
7
Q
A
