Genetic & Blood Test Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Law of independent assortment

A

States that genes separate independently in meiosis
Sperm & egg meet
One allele from each to form to make a child

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Incomplete dominance

A

Dominant allele is unable to fully express itself
Heterozygous black
Purebred recessive white
Child turns out white/tan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Codominance

A

Both alleles for a gene are fully expressed

AB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

trait

A

genetically determined variant of a characteristic

feature, yellow flower

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

allele

A

different versions of a gene

one out of the genotype (1 letter)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

gene

A

codes for a specific trait unit of heredity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

dominant

A

gene thats expressed, capital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

recessive

A

trait hidden by dominant, lower case

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

homozygous

A

2 of the same alleles TT or tt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

heterozygous

A

person has 2 different alleles Tt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

genotype

A

genetic make up of an organism, combination of genes for 1 or more specific traits TT, Tt, tt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

phenotype

A

organisms appearance that results from the genotype TT-tall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

probability

A

likely hood that a future event will occur, ratio 3:1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

polygenic trait

A

describes a characteristic thats influenced by many genes

skin color, controlled by many genes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

pedigree

A

chart shows occurence of genetic traits in several generations of a family

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

karyotype

A

photomicrograph of chromosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

in blood types can a - recieve a positive?

positive receive -?

A

positive receives anything

negative can never receive a positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

heredity

A

passing of traits from parents to offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

genetics

A

branch of science that studies heredity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

gregor mendel

A

father of modern genetics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what did mendel use ?

A

peas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

purebred examples

A

TT or tt

23
Q

hybrid

A

Yy

24
Q

genotype ratio

A

homo:hetero:homo recessive

25
Q

phenotype ratio

A

D:r

26
Q

what can you determine about a family using a pedigree ?

A

how traits are passed and who passed them

27
Q

sex linked genetically inherited traits can appear in? males or females?

A

both males and females

28
Q

Y-linked traits are inherited by ?

A

only males

29
Q

red green color blindness is Xlinked

men who have this must have inherited the genes for it from ?

A

from their mothers

30
Q

women = XX men = XY which of a mans grandparents could be the source of any of the genes on his y Chromosome ?

A

fathers father

31
Q

which of a womens grandparents could NOT be the source of any of the genes on either he X chromosomes?

A

fathers father

32
Q

how is blood type O expressed in genotype?

A

ii

33
Q

blood A genotype

A

I^Ai or I^AI^A

34
Q

blood B genotype

A

I^Bi or I^BI^B

35
Q

blood AB genotype

A

I^AI^B

36
Q

what blood is the universal donor ?

A

type O+

37
Q

what blood is the universal receiver ?

A

AB+

38
Q

homozygous for the B allele

A

I^BI^B

39
Q

heterozygous for the A allele

A

I^Ai

40
Q

type O

A

ii

41
Q

type A and had a type O parent

A

I^Ai

42
Q

Type AB

A

I^AI^B

43
Q

blood can be donated to anybody

A

ii

44
Q

can only get blood from type O donor

A

ii

45
Q

antibodies in plasma for blood A

A

anti B

46
Q

antibodies in plasma for blood B

A

anti A

47
Q

antibodies in plasma for blood AB

A

none

48
Q

antibodies in plasma for blood O

A

anti A & B

49
Q

what do the antigens do ?

A

mark the type of blood you have
ex. type A blood has antigens A
type O blood has no antigens

50
Q

coagulation

A

blood clumps together

51
Q

Rh protein is present is it positive or negative ?

A

positive

52
Q

letters on the outside/ inside of the punnett square representation

A

outside - mother & father genotypes

inside - chances of each childs genotype

53
Q

difference between dihybrid & monohybrid cross

A

dihybrid has more combinations of alleles possible because 2 characteristics are crossed instead of 1

54
Q

what gender is most likely to inherit a sex-linked trait ?

A

male because they only have 1 x-chromosome so the trait that is passed down is the trait they have