stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Exam 3 review Flashcards | StudBud
Explore
/
Exam 3 review
Exam 3 review
55 terms
·
StudBud Administration
·
76 plays
BIO 111
Flashcards
55 cards
F
Practice quiz
P
Host live
L
Questions
55
Answers
1
The new DNA strand is added in a 5' to 3' direction
True
False
2
Pyrimidines are single ringed
True
False
3
RNAP II reads the DNA template strand in a 5' to 3' direction
false
true
4
tRNA enters at the _____ site, the polypeptide chain sits at the _____ site, and tRNA exits at the ______ site
P,A,E
E,P,A
A,P,E
A,E,P
5
What phase of mitosis is this?
Metaphase
Anaphase
Telophase
Prophase
6
What would happen to a cell if it didn't duplicate its DNA correctly before mitosis?
It would create two abnormally small daughter cells
It would be stopped at a checkpoint
It would go through mitosis normally
apotosis
7
An intact nuclear envelope is present or is in the process of reforming.
Anaphase
Prometaphase
Telophase
Prophase
8
Who donates the Y chromosome in fertilization?
Mom
None
Mom and Dad
Dad
9
What does the enzyme helicase do?
It unzips and unwinds the DNA
It adds nucleotides to the lagging strand
It keeps DNA from coming back together
It adds a primer to the DNA
10
What is a way to get genetic variation in prophase 1?
Chiasmata
Crossing over
There is no genetic variation from prophase 1
Differences in the DNA that is condensed
11
If you want an mRNA to be expressed for a long time, then you want a poly-A tail that is...
25-30 Adenines long
10-15 Adenines long
5-10 Adenines long
12
Which of these is false concerning DNA?
nucleotides are on the inside
DNA is double stranded
sugar-phosphate backbone is on inside
Double helix structure
13
What functional group is on the 3' end?
Phosphate
Carbonyl
Hydroxyl
Carboxyl
14
What does primase do?
Holds DNA in place
Extends the DNA strand to prevent loss
Adds a RNA primer to the DNA
Adds DNA nucleotides to the template strand
15
What do the single stranded binding proteins do?
Adds a phosphate to the DNA
It helps elongate DNA to prevent loss
Keep hydrogen bonds from reforming
It adds nucleotides to the lagging strand
16
Why is a primer necessary?
Allows for topoisomerase to bind
It makes the lagging strand have fewer fragments
it isn't necessary
Allows for DNA polymerase III to bind
17
A maternal and paternal chromosome code for the same type of genes. What word describes them?
Hereditary
Sister Chromatids
Nonhomologous
Homologous
18
stop...
puppy time!
10/10 would unwrap
a cutie boi
is 100% on the nice list
19
Frameshift mutations are caused by adding or deleting nucleotides in groups of 3
False
True
20
Missense mutations cause a change in one amino acid while nonsense mutations cause a shortened protein
False
True
21
What kind of cell results from Telophase and Cytokinesis 1?
diploid
haploid
22
Which half of meiosis behaves most like mitosis?
2
1
23
guess what time it is...
jolly szn
i'm on the nice list I promise
best gift EVER
I'll just take my 1000 points THANKS
24
Some or all chromosomes are connected to microtubules
Prometaphase
Metaphase
Cytokinesis
Anaphase
25
What phase of meiosis does this represent?
Metaphase 1
Anaphase 2
Prophase 2
Prophase 1
26
What is the function of topoisomerase
It relieves tension in DNA when it is unwound
it unwinds the DNA
It adds nucleotides to the leading strand
It adds nucleotides to the lagging strand
27
What is the term indicating where a gene would be on a chromosome?
inheritance
locus
somatic
homologous
28
Nitrogenous Bases are held together by __________ bonds.
Covalent
Ionic
Phosphodiester
Hydrogen
29
What is the centrosome composed of?
Chromosomes
Kinetochores
Centrioles
Centromeres
30
I know that Dr. Misra covered a TON of material for this exam and I know that this quiz is not all inclusive!
I was just here for the dog pics
Yeah! I totally studied!
Who cares I'm gonna crush this exam
I love DNA and how it replicates
31
What is the structure labeled "X"?
Centromere
Centrosome
Chromosome
Chromatid
32
DNA polymerase I and DNA polymerase III have the same function
False
True
33
DNA replication in humans has many origins of replication but doesn't happen bidirectionally
True
False
34
all I want for Christmas is a puppy
I heard Mariah Carey in my head
santa pls
no... I want an A in biology
h*ck yeah
35
How is metaphase 1 different?
Sister chromatids line up with each other
The chromosomes don't get attached to microtubules
Homologous chromosomes line up with each other
They line up at the end of the cell
36
Which of the following is not true of gametes?
haploid
2n
Allosome
Meiosis makes them
37
The chromosomes are fully condensed
Anaphase
Metaphase
Prophase
Cytokinesis
38
Chromosomes are moving toward the poles
Telophase
Prophase
Cytokinesis
Anaphase
39
Why can't plant cells pinch in during cytokinesis?
The chloroplasts inhibit it
The plant cells are much bigger, so it would not work
The cell wall makes them rigid
They have too much water in their cells, they'll pop.
40
During mRNA processing, splicing involves cutting out the eons
True
False
41
For the next questions, choose a stage of mitosis that fits (there can be more than one)
Okay!
I love Biology!
Yay!
Mitosis rocks!
42
The chromosomes are made of two chromatids.
Anaphase
Prometaphase
Metaphase
Prophase
43
Which of the following is not true of somatic cells?
23 chromosomes
23 chromosome pairs
autosome
haploid
44
What nucleotides are purines? (more than one is correct)
T
C
G
A
45
Why are haploids necessary for reproduction?
lets talk about it!
woo! Discussion!
46
To terminate translation, the release factor promotes:
dehydration reactions
hydrolysis reactions
47
DNA replicates in a ______ way
Dispersive
Conservatie
Semiconservative
48
At what point of Interphase are all chromosomes made of two chromatids?
G2
G1
S
M
49
Which of the following is NOT a key player for the initiation of transcription
RNAP II
Transcription Factors
DNA polymerase III
TATA box
50
Chromosomes are in the process of condensing
Anaphase
Prometaphase
Telophase
Prophase
51
Who donates the X chromosome in fertilization?
Mom
Dad
Mom and Dad
None
52
What is the sugar in the DNA backbone?
Ribose
Glucose
Deoxyribose
Sucrose
53
What is different about Prophase 1?
Each chromosome has 2 sister chromatids
Tetrads are formed to make a chaismata
Centrosomes move to the poles
Chromosomes condense
54
How many chromosomes are in this picture? How many chromatids?
8,8
4,4
4,8
8,4
55
Silent mutations are the most deadly mutations
False
True
