Brainscape's Knowledge GenomeTM

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


See full index

Biology 111 > Exam 1 Answer Key > Flashcards

Exam 1 Answer Key Flashcards

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

Which of the following proteins keep parental DNA separated during DNA replication?

A

Single-strand binding proteins

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

Why can’t the lagging DNA strand be copied continuously like the leading strand?

A

Because DNA polymerase can attach nucleotides in only one direction

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

What is the function of ligase during DNA replication?

A

Joining Okazaki fragments

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

Which of the following is true of binary fission?

A

Binary fission results in two daughter cells that are genetically identical to one another

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

During which phase of the cell cycle does DNA replication occur?

A

S

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

What is the term used to describe DNA wrapped around histone proteins?

A

Nucleosome

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

During which phase of the cell cycle does the nuclear envelope reassemble?

A

Telophase

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

You see a cell in mitotic phase with its sister chromatids being pulled towards opposite poles; in which phase is this cell?

A

Anaphase

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

Which of the following are expected to be identical to one another?

A

Sister chromatids during mitosis

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

What structure forms first in a plant cell as it undergoes cytokinesis to separate it into two daughter cells?

A

Cell plate

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

The sites of physical exchange of DNA between chromatids are known as:

A

Chiasmata

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

How are Meiosis I and Meiosis II different?

A

Crossing over occurs during Meiosis I but not Meiosis II

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

Septum formation and cleavage formation:

A

differ because septa are produced by FtsZ protein and cleavage furrows are produced by actin and myosin microfilaments

are necessary for cells to divide their cytoplasm

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

A telomere is

A

Made up of repeated DNA sequences at the ends of chromosomes

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

Primase

A

Synthesizes an RNA primer for DNA polymerase

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

During replication, DNA is unwound

A

By helicase at the replication fork

17
Q

Which of the following is/are true about microtubules?

A

They are made of protein

They may attach to kinetochores

18
Q

The synaptonemal complex

A

Is composed of protein

Forms between non-sister chromatids

19
Q

Cells containing only one homologue of each chromosome would be produced by the end of:

A

Meiosis I and Meiosis II

20
Q

Crossing over

A

involves the reciprocal exchange of genetic material between the non-sister chromatids of homologous chromosomes.

21
Q

During which phase of the cell cycle do the poles of the cell move apart?

A

Anaphase

22
Q

Cell division in prokaryotes and eukaryotes both involve

A

Segregation of genetic material

23
Q

An activated cyclin dependent kinase

A

Has a cyclin component
Activates other molecules by phosphorylating them
Has a kinase component

24
Q

A cell cycle checkpoint may occur

A

At G1-S
At G2-mitosis
At metaphase-anaphase

25
Q

Cells containing homologous pairs of chromosomes would be produced by which of the following processes?

A

Mitosis

26
Q

Sister chromatids are created during which process?

A

When DNA is replicated during S phase

27
Q

Which biological process would be directly affected if meiotic division was impaired?

A

Sexual reproduction

28
Q

Which of the following are expected to be identical to one another?

A

Sister chromatids

29
Q

What will happen to a cell that detects damage to DNA after the S phase of the cell cycle?

A

B. It won’t proceed through the G2/mitosis checkpoint until damage is fixed

30
Q

In what phase of the cell cycle is DNA fully compacted and visible in a cell?

A

During mitosis

31
Q

Males are more often affected by sex-linked traits than females because

A

A. males are hemizygous for the X chromosome

32
Q

The interaction between genes at different loci to determine coat color in Labradors is an example of?

A

Epistasis

33
Q

Which of the following is true about the F1 offspring from a P0 cross between true-breeding dominant and true-breeding recessive organisms?

A

They will all have the same phenotype

Biology 111 (8 decks)

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