exam2 Flashcards

(59 cards)

1
Q

sickle cell disease is

A

caused by abnormal hemoglobin molecules

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

a phenotype includes

A

all the above

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

a recessive allele is

A

an allele who’s presence can be hidden

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

a dominant allele is

A

an allele that expresses phenotypically even when with recessive allele

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

which of the following statements is true concerning a homozygote?

A

both alleles are the same

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

Mendels law of segregation states that

A

2 copies of a gene separate during meiosis

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

Mendel’s law of assortment

A

each pair of alleles segregate independantly of other pairs of allowles

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

a trait

A

is a characteristic passed to offspring from parents

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

Characteristic of an autosomal pattern of inheritance

A

male and female affected in roughly equal numbers

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

true about sex linked traits

A

fathers do not donate X chromosome to sons

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

X linked recessive genetic trait

A

hemophilia

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

autosomal dominant genetic disorder

A

A, B, and C

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

autosomal recessive genetic disorder

A

albinism

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

distinctive pattern of inheritance found for X linked recessive traits

A

hemizygous males and homozygous females affected

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

which of the following is true about HD

A

many people already have children before developing

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

Mitochondrial disorders

A

are passed from mother to all children

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

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

A

false

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

subunits of DNA

A

nucleotides

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

nitrogenous base not in DNA

A

Uracil

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

Hydrogen bonds form between

A

adenine and uracil

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

DNA nucleotide consists of all except

A

a ribose sugar

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

When DNA is wound around a histone core

A

nucleosome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Differences with RNA and DNA

A

all choices are correct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

all are functions of FNA polymerase except

A

detects errors in replication process and corrects mistake

25
T o F: people with xeroderma pigmentosum are resistant to DNA damage from UV light
false
26
an anticodon is
group of nucleotides of mRNA that ecodes info for specific amino acid
27
which is true about sick cell
all the above
28
translation is the process of
making protein from RNA
29
RNA polymerase is an enzyme that q
makes pre mRNA from a DNA template
30
basic subunit of protein
amino acid
31
how many amino acids found in human protein
4
32
all functions of protein except
defense molecules
33
process of transcription requires
a DNA template
34
region on DNA when RNa polymerase binds
promoter
35
which describes flow of info
dna mrna protein
36
translation important for
conversion of genetic information into protein
37
hemoglobin has which protein structure
all the above
38
first codon in protein translation is called
start codon
39
gene regulation can be achieved by
use of RNA interference
40
gene regulation is important because
different genes need to be expressed in different cells
41
T o F: changing how tightly DNA is wound does not change gene expression
false
42
Mutations are
changes in nucleotide sequence of DNA
43
Queen Victoria
was source of mutation causing hemophilia
44
largest source of radiation for US population
cosmetic radiation
45
mutations that occur in __ cells can be passed on
sex
46
standard X ray
1 rem
47
free radical
a particle with an electric charge
48
base analogs
displease natural bases and result in base transition
49
DNA mutations include
all choices
50
mutations
are only detected when there is a change in phenotype
51
false about mutation]
the smaller the gene the higher the mutation rate
52
a cell that has accumulated a lot of mutations can
all choices are correct
53
epigenetics involve changes in
the expression of genes
54
gene imprinting
is due to epigenetic changes
55
Which statement of epigenetics is true
modification can be caused by environmental factors
56
marriage of first cousin
consenguenious
57
falderal act protecting privacy
HIPPA
58
Angents causing mutations
mutagents
59
turn ofd gene by tightly widing
silencing