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Biology 106 > exam2 > Flashcards

exam2 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

sickle cell disease is

A

caused by abnormal hemoglobin molecules

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2
Q

a phenotype includes

A

all the above

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3
Q

a recessive allele is

A

an allele who’s presence can be hidden

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4
Q

a dominant allele is

A

an allele that expresses phenotypically even when with recessive allele

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5
Q

which of the following statements is true concerning a homozygote?

A

both alleles are the same

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6
Q

Mendels law of segregation states that

A

2 copies of a gene separate during meiosis

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7
Q

Mendel’s law of assortment

A

each pair of alleles segregate independantly of other pairs of allowles

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8
Q

a trait

A

is a characteristic passed to offspring from parents

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9
Q

Characteristic of an autosomal pattern of inheritance

A

male and female affected in roughly equal numbers

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10
Q

true about sex linked traits

A

fathers do not donate X chromosome to sons

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11
Q

X linked recessive genetic trait

A

hemophilia

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12
Q

autosomal dominant genetic disorder

A

A, B, and C

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13
Q

autosomal recessive genetic disorder

A

albinism

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14
Q

distinctive pattern of inheritance found for X linked recessive traits

A

hemizygous males and homozygous females affected

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15
Q

which of the following is true about HD

A

many people already have children before developing

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16
Q

Mitochondrial disorders

A

are passed from mother to all children

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17
Q

T o F: the Y chromosome has same genes as the X chromsome

A

false

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18
Q

subunits of DNA

A

nucleotides

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19
Q

nitrogenous base not in DNA

A

Uracil

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20
Q

Hydrogen bonds form between

A

adenine and uracil

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21
Q

DNA nucleotide consists of all except

A

a ribose sugar

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22
Q

When DNA is wound around a histone core

A

nucleosome

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23
Q

Differences with RNA and DNA

A

all choices are correct

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24
Q

all are functions of FNA polymerase except

A

detects errors in replication process and corrects mistake

25
Q

T o F: people with xeroderma pigmentosum are resistant to DNA damage from UV light

A

false

26
Q

an anticodon is

A

group of nucleotides of mRNA that ecodes info for specific amino acid

27
Q

which is true about sick cell

A

all the above

28
Q

translation is the process of

A

making protein from RNA

29
Q

RNA polymerase is an enzyme that q

A

makes pre mRNA from a DNA template

30
Q

basic subunit of protein

A

amino acid

31
Q

how many amino acids found in human protein

A

4

32
Q

all functions of protein except

A

defense molecules

33
Q

process of transcription requires

A

a DNA template

34
Q

region on DNA when RNa polymerase binds

A

promoter

35
Q

which describes flow of info

A

dna mrna protein

36
Q

translation important for

A

conversion of genetic information into protein

37
Q

hemoglobin has which protein structure

A

all the above

38
Q

first codon in protein translation is called

A

start codon

39
Q

gene regulation can be achieved by

A

use of RNA interference

40
Q

gene regulation is important because

A

different genes need to be expressed in different cells

41
Q

T o F: changing how tightly DNA is wound does not change gene expression

A

false

42
Q

Mutations are

A

changes in nucleotide sequence of DNA

43
Q

Queen Victoria

A

was source of mutation causing hemophilia

44
Q

largest source of radiation for US population

A

cosmetic radiation

45
Q

mutations that occur in __ cells can be passed on

A

sex

46
Q

standard X ray

A

1 rem

47
Q

free radical

A

a particle with an electric charge

48
Q

base analogs

A

displease natural bases and result in base transition

49
Q

DNA mutations include

A

all choices

50
Q

mutations

A

are only detected when there is a change in phenotype

51
Q

false about mutation]

A

the smaller the gene the higher the mutation rate

52
Q

a cell that has accumulated a lot of mutations can

A

all choices are correct

53
Q

epigenetics involve changes in

A

the expression of genes

54
Q

gene imprinting

A

is due to epigenetic changes

55
Q

Which statement of epigenetics is true

A

modification can be caused by environmental factors

56
Q

marriage of first cousin

A

consenguenious

57
Q

falderal act protecting privacy

A

HIPPA

58
Q

Angents causing mutations

A

mutagents

59
Q

turn ofd gene by tightly widing

A

silencing

Biology 106 (4 decks)

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