Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Genetics > Flashcards

Genetics Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

A unit that determines heritable characteristics

A

Gene

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

Organisms that always produce offspring identical to parents

A

True- breeding

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

The offspring of two different varieties

A

Hybrid

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

When two different alleles of a pair are different, the one is masked

A

Recessive

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

An incorrect idea that acquired characteristics are passed on

A

Pangenesis

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

Parent organisms that are mated

A

P generation

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

A diagram that shows possible combinations of gametes

A

Punnett square

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

A breeding experiment that uses parents different in one characteristic

A

Monohybrid cross

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

One of the alternative forms of a gene for a characteristic

A

Allele

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

Relative numbers of organisms with various characteristics

A

Phenotypic ratio

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

An organism that has two different alleles for a characteristic

A

Heterozygous

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

Old idea that heredity materials from parents mix into offspring

A

Blending

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

An organisms genetic make up

A

Genotype

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

Separation of allele pairs that occurs during gamete formation

A

Segregation

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

Fertilization of a plant by pollen from a different plant

A

Cross- Fertilization

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

An organism that has two identical alleles for a characteristic

A

Homozygous

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

Offspring of the P generation

A

F1 generation

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

A characteristic most commonly found in nature

A

Wild type

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

What an organism looks like; its expressed traits

A

Phenotype

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

Offspring of the F1 generation

A

F2 generation

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

When pollen fertilizes eggs from the same flower

A

Self fertilization

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

A hybridization

A

Cross

23
Q

When two alleles of a pair are different, the one expressed

A

Dominant

24
Q

Where genes for a certain trait are located

A

Homologous chromosomes

25
Q

Offspring is an ___ event

A

independent

26
Q

freckles are

A

dominant

27
Q

widows peak is

A

dominant

28
Q

Free earlobes are

A

dominant

29
Q

sickle cell

A

half moon shape. hemoglobin cant attach and cant carry oxygen

30
Q

how many pairs of chromosomes

A

23

31
Q

1-22

A

autosomal (characteristics of body)

32
Q

23

A

sex/gender

33
Q

Cystic fibrosis is the most common lethal genetic disease in the united states

A

true

34
Q

A genetic disorder is expected in half the children of two carries of a recessive allele

A

false: 1/4

35
Q

About 50 human genetic disorders are known to be inherited as Mendelian traits

A

true

36
Q

Most people afflicted with genetic disorders are born to afflicted parents

A

false: not born

37
Q

Most serious human genetic disorders are recessive

A

true

38
Q

Cystic fibrosis is most common among Asian Americans

A

false; caucasians

39
Q

Most genetic disease are evenly distributed evenly among ethnic groups

A

false; not evenly

40
Q

Most societies have taboos and laws against marriage between close relatives

A

true

41
Q

half of the offspring of two carriers of a recessive allele are likely to be carriers

A

true

42
Q

dominant alleles are always more common in the population than recessive alleles

A

not always

43
Q

Tay- sachs disease is seen among Jews from central Europe

A

true

44
Q

Lethal dominant alleles are much more common than lethal recessive alleles

A

less

45
Q

Achondroplasia is a form of dwarfism

A

true

46
Q

Geneticists agree that inbreeding always increases the risk of inherited diseases

A

false; debate

47
Q

Huntingtons disease is lethal, but it does not strike until middle age

A

true

48
Q

Symptoms of PKU include excess mucus in the lungs and digestive tract

A

false; cystic fibrosis

49
Q

Extra fingers and toes is a dominant trait

A

true

50
Q

sickle cell disease is common among African Americans

A

true

51
Q

Karyotype

A

Take a picture of chromosomes

Down syndrome

52
Q

Taking a sample of amniotic fluid

A

Amniocentesis

53
Q

New technique that gets results back faster

A

Chorionicvillus

Biology (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions