Chapter 9-2

Question 1

Antigens

Answer 1

molecules on the surface of the plasma membrane

Question 2

Agglutination

Answer 2

when antigens attack foreign antigens, results in blood clots

Question 3

Continuous variation

Answer 3

variation of a gene on a spectrum

Question 4

Nondisjunction

Answer 4

failure of a chromosome to split from its tetrad during MEIOSIS

Question 5

Why is nondisjunction caused

Answer 5

spindle fibers being broken down over time

Question 6

Monosomy

Answer 6

One less chromosome

Question 7

Trisomy

Answer 7

extra chromosome

Question 8

Aneuploidy

Answer 8

being off by one chromosome

Question 9

Down Syndrome

Answer 9

Trisomy 21

Question 10

Klinefelter syndrome

Answer 10

XXY

Question 11

Super male syndrome

Answer 11

XYY

Question 12

Turner Syndrome

Answer 12

XO - only in females

Question 13

Lethal condition

Answer 13

YO

Question 14

Ultrasound

Answer 14

taking a picture of a fetus’ sound waves

Question 15

Amniocentesis

Answer 15

taking fetal skin cells that are in the amniotic fluid

Question 16

Chorionic villi sampling

Answer 16

take out cells directly from the FETAL part of the PLACENTA

Question 17

Karyotype construction

Answer 17

a picture of an individual’s chromosomes

Question 18

what is the first choice between Amniocentesis and CVS

Answer 18

Amniocentesis

Question 19

Which is quicker (amnio or CVS)

Answer 19

cvs

Question 20

Why is CVS not used even though it’s faster?

Answer 20

its dangerous