Unit 2

Question 1

Monozygotic twins

Answer 1

genetically identical, cells split in ovum first week

Question 2

Dizygotic twins

Answer 2

Similar as siblings, 2 seperate sperm

Question 3

Fragile X

Answer 3

mutations on x chromosome

Question 4

Ray-sachs

Answer 4

mutation gene

Question 5

Klinefelters

Answer 5

extra x chromosome

Question 6

Prenatal testing

Answer 6

ultrasound, chroioniv villus sampling (hair), aminocentesis (old ppl amniotic fluid)

Question 7

Screening for problems

Answer 7

germ line therapy, genetic counselors

Question 8

Temperment

Answer 8

environment that affects behavior

Question 9

Nature vs nurture

Answer 9

nature is bio, nurture environment both play a role

Question 10

What determins physical traits

Answer 10

genetics

Question 11

What determins intelligence

Answer 11

environement and genetics

Question 12

OCEAN

Answer 12

openness, conciencessness, extroversion, agreeableness, neuroticism

Question 13

Which parts of ocean determin genetics

Answer 13

neuroticism, extroversion

Question 14

Stages of development for baby

Answer 14

Germanial, embryonic, fetal

Question 15

Germanial stage

Answer 15

baby is zygote, cell division,

Question 16

Embryonic stage

Answer 16

baby is embryo, baby has 3 layers: ectorderm (skin and hair) endoderm (digetstive and liver) mesoerm (muscle and blood)

Question 17

Fetal stage

Answer 17

baby is fetus, increase in size and weight

Question 18

Infetility

Answer 18

12-18 months of unsecussful, treatment: insemenation, invito and ZIFT

Question 19

Teratogen

Answer 19

environmental factors that effect pregancy

Question 20

ipesitonomy

Answer 20

cut vagina when shoulders too big

Question 21

infant death

Answer 21

rate is declining but high in the US why?

Question 22

postpartum

Answer 22

10% of mothers

Question 23

infants visual and audio

Answer 23

not fully developed, sees contrast colors

Question 24

Habituation

Answer 24

exposed to things

Question 25

C section rate

Answer 25

26%

Question 26

postmature babies rate

Answer 26

10%

Question 27

premie babies rate

Answer 27

1 in 10 babies

Question 28

babies earlier than 25 weeks

Answer 28

50% chance of survival

Question 29

miscarrage rates

Answer 29

15-20%

Question 30

abortion rates

Answer 30

1/5 pregnancies

Question 31

twin birth rate

Answer 31

less than 3%

Question 32

polygenetic traits

Answer 32

inherated, x linked on x chromosomes

Question 33

dominant and recessive traints

Answer 33

Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.

Question 34

genetype

Answer 34

the genetic makeup

Question 35

phenotype

Answer 35

observable traits

Question 36

hetero phenotpyes

Answer 36

an organism that has different copies of a gene for a particular trait is considered heterozygous

Question 37

homo phenotype

Answer 37

An organism that has the same two copies of a gene is considered homozygous for that trait

Question 38

stillbirth rates

Answer 38

1/160