Unit 2 Flashcards

1
Q

Monozygotic twins

A

genetically identical, cells split in ovum first week

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2
Q

Dizygotic twins

A

Similar as siblings, 2 seperate sperm

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3
Q

Fragile X

A

mutations on x chromosome

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4
Q

Ray-sachs

A

mutation gene

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5
Q

Klinefelters

A

extra x chromosome

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6
Q

Prenatal testing

A

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

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7
Q

Screening for problems

A

germ line therapy, genetic counselors

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8
Q

Temperment

A

environment that affects behavior

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9
Q

Nature vs nurture

A

nature is bio, nurture environment both play a role

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10
Q

What determins physical traits

A

genetics

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11
Q

What determins intelligence

A

environement and genetics

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12
Q

OCEAN

A

openness, conciencessness, extroversion, agreeableness, neuroticism

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13
Q

Which parts of ocean determin genetics

A

neuroticism, extroversion

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14
Q

Stages of development for baby

A

Germanial, embryonic, fetal

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15
Q

Germanial stage

A

baby is zygote, cell division,

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16
Q

Embryonic stage

A

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

17
Q

Fetal stage

A

baby is fetus, increase in size and weight

18
Q

Infetility

A

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

19
Q

Teratogen

A

environmental factors that effect pregancy

20
Q

ipesitonomy

A

cut vagina when shoulders too big

21
Q

infant death

A

rate is declining but high in the US why?

22
Q

postpartum

A

10% of mothers

23
Q

infants visual and audio

A

not fully developed, sees contrast colors

24
Q

Habituation

A

exposed to things

25
Q

C section rate

A

26%

26
Q

postmature babies rate

A

10%

27
Q

premie babies rate

A

1 in 10 babies

28
Q

babies earlier than 25 weeks

A

50% chance of survival

29
Q

miscarrage rates

A

15-20%

30
Q

abortion rates

A

1/5 pregnancies

31
Q

twin birth rate

A

less than 3%

32
Q

polygenetic traits

A

inherated, x linked on x chromosomes

33
Q

dominant and recessive traints

A

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.

34
Q

genetype

A

the genetic makeup

35
Q

phenotype

A

observable traits

36
Q

hetero phenotpyes

A

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

37
Q

homo phenotype

A

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

38
Q

stillbirth rates

A

1/160