unit 8 notes 1

Question 1

Define nondisjunction

Answer 1

When chromosomes do not seperate properly during meiosis (too many or too few chromosomes end up in a cell)

Question 2

Define trisomy

Answer 2

Having an extra chromosome in the zygote cell

Question 3

Organisms with ________ chromosomes often __________, organisms ________ chromosomes usually do not

Answer 3

Extra, Survive, Lacking

Question 4

Define polyploid

Answer 4

have too many chromosomes

Question 5

Polyploids often cause _______ in animals

Answer 5

death

Question 6

what causes plants to produce larger healthier flowers and fruits?

Answer 6

ployploids

Question 7

What are the types of chromosomal mutations?

Answer 7

Deletion, Duplication, Inversion, and Translocation

Question 8

Which chromosomal mutation removes a section of DNA from a chromosome?

Answer 8

Deletion

Question 9

Which chromosomal mutation duplicates a section of DNA in a chromosome?

Answer 9

Duplication

Question 10

Which chromosomal mutation turns a section of DNA backwards in a chromosome?

Answer 10

Inversion

Question 11

Which chromosomal mutation switches one section of DNA with another in a chromosome?

Answer 11

Translocation