Brainscape's Knowledge GenomeTM

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


See full index

Concepts of Bio > Lecture 15 > Flashcards

Lecture 15 Flashcards

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

DFTD is a cancer, which is characterized by … In order to understand DFTD, we first need to understand how cells …

A

abnormal cell division; divide normally

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

2n means …, which indicates … sets of chromosomes

n means …, which indicates … sets of chromosomes

A

diploid; 2; haploid; 1

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

homologous chromosomes contain DNA that codes for … Both chromosomes have all the same … in the same …, but different … of those genes

A

the same genes; genes; locations; versions

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

scientists use … to study chromosomes

A

karyotypes

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

karyotype = … and … of chromosomes in a eukaryotic nucleus

A

number; appearance

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

each eukaryotic organism has two types of cells: … and … cells
most cells are … (have two copies of each chromosome) and are called … cells

A

somatic; germ; diploid; somatic; diploid; somatic

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

germ cells produce … (one copy of each chromosome) and are the only cells that can undergo … as well as …

A

haploid gametes; meiosis; mitosis

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

humans have … chromosomes: … autosomes and … sex chromosomes.

A

46; 44; 2

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

human karyotyping is sometimes done to detect the presence of … associated with medical problems

A

chromosomal abnormalities

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

the portion of the cell cycle that involves cell division is by far the … cells do not spend most of their time …

A

shortest; dividing

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

some cells stay in the … phase until induced to … This is where … function takes place

A

G0; divide; normal cellular

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

G0 is

A

cell cycle arrest

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

G1: cellular contents, excluding the …, are ….

A

chromosomes; duplicated

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

S: each of the … is …. by the cell

A

46 chromosomes; duplicated

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

G2: the cell “…” the duplicated chromosomes for …, making any needed …

A

double checks; error; repairs

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

interphase:

A

G1, S, G2

17
Q

Some cells (like nerve and eye cells) do not … and stay in the … phase

A

divide; G0

18
Q

after mitosis, there are now 2 … cells … to the original cell

A

daughter; identical

19
Q

Walter Flemming was the first to record the process of

A

mitosis

20
Q

… and … are replicated in the S phase. After their replication, chromosomes … into …

A

chromosomes; centromeres; condense; sister chromatids

21
Q

Mitosis: cell division in which one cell divides to produce …, each with the identical … of the parent cell

A

2 daughter cells; genetic information

22
Q

In the G1 phase: the chromosomes remain … so genes can be …
S phase: the chromosomes … and consist of two …

A

extended; accessed; replicate; sister chromatids

23
Q

(mitosis) prophase: the chromosomes …

A

condense

24
Q

(mitosis) pro-metaphase: chromosomes .. further and each chromatid develops a …. that attaches to …

A

condense; kinetochore; microtubules

25
Q

(mitosis) metaphase: the chromosomes … at the … of the dividing cell

A

line up; equator

26
Q

(mitosis) anaphase: the spindle … the sister chromatids are then ….

A

pulls the chromosomes apart; dragged to opposite ends of the cell

27
Q

(mitosis) telophase: the chromosomes … and the … reforms, completing chromosome segregation

A

uncoil; nuclear membrane

28
Q

(mitosis) cytokinesis: the … of the two daughter cells …

A

cytoplasm; divides

29
Q

(mitosis) the process of separating duplicated chromosomes, occurs in a series of phases that are part of the cell cycle. A dividing cell passes through each of these phases in sequence. The cellular machinery that actually pulls chromosomes apart is known as the

A

mitotic spindle.

30
Q

(mitosis) interphase:
each chromosome replicates in …, resulting in two sister chromatids connected at the …
chromosomes are loosely gathered in the …

A

late interphase; centromere; nucleus

31
Q

(mitosis) interphase: includes

A

G1, S, G2

32
Q

(mitosis) prophase: replicated chromosoms begin to …, the nuclear membrane begins to …, … of the mitotic spindle begin to form

A

coil up; disassemble; protein fibers

33
Q

(mitosis) prometaphase: chromosomes … to … them, making it easier to …
… attach to chromosomes on both sides at the … region

A

condense; shorten; separate; spindle fibers; centromere

34
Q

(mitosis) metaphase: spindle fibers from opposite ends of the cell …,chromosomes are aligned along the …

A

pull on chromosomes; middle of the cell

35
Q

(mitosis) anaphase: spindle fibers … and pull … to … ends of the cell

A

shorten; sister chromatids; opposite

36
Q

(mitosis) telophase: an identical set of chromosomes reaches each pole, … disassemble, … forms around each set of chromosomes, forming the daughter cell …

A

spindle fibers; nuclear membrane; nuclei

Concepts of Bio (34 decks)

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