Lesson 03: Errors And Applications In Cell Division

Question 1

Independent assortment and crossing over produce what during meiosis?

Answer 1

Genetic variation

Question 2

4 errors to chromosome structure:

Answer 2

1. Deletion
2. Duplication
3. Inversion
4. Translocation

Question 3

Deletion

Answer 3

A piece of chromosome is deleted

Question 4

Duplication

Answer 4

A section of a chromosome appears two or more times in a row

Question 5

Inversion

Answer 5

A section of a chromosome is inverted

Question 6

Translocation

Answer 6

A segment of one chromosome becomes attached to a different chromosome

Question 7

Non-disjunction

Answer 7

Failure of homologous chromosomes or sister chromatids

Question 8

Gametes produced contain how many chromosomes?

Answer 8

22 or 24

Question 9

Cells that have too much or too little genetic information..

Answer 9

Do not function properly

Question 10

Trisomy

Answer 10

Zygote that has three chromosomes

Question 11

Monosomy

Answer 11

Zygote that has one chromosome

Question 12

Trisomy 21

Answer 12

Down syndrome

Question 13

Trisomy 18

Answer 13

Edward syndrome

Question 14

Trisomy 13

Answer 14

Patau syndrome

Question 15

XXY

Answer 15

Klinefelter syndrome

Question 16

XYY

Answer 16

Jacob’s syndrome

Question 17

XXX

Answer 17

Triple X syndrome

Question 18

XXX

Answer 18

Triple X syndrome

Question 19

XO

Answer 19

Turner syndrome

Question 20

Can Most gametes with abnormalities survive?

Answer 20

Cannot survive, but if they do, they can fertilized and produce a zygote

Question 21

Since every cell in an offspring is produced from the one zygote cell, (error)

Answer 21

All of cells in offspring will contain the error

Question 22

Can Non-homologous pairs cross over

Answer 22

Yes, producing chromosomes that contain genes not normally on the chromosome