Brainscape's Knowledge GenomeTM

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


See full index

Botany > Lecture 17 > Flashcards

Lecture 17 Flashcards

1
Q

Cells that have one full set (copy) of all chromosomes are _________

A

Haploid (N)

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

Cells that have 2 sets (copies) of all chromosomes are _______

A

Diploid (2N)

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

Cells have 3 sets (copies) of all chromosomes are _______.

A

Triploid (3N)

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

Cells that 4 have sets of chromosomes are _______.

A

Tetraploid (4N)

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

are life cycles a sexual or asexual process?

A

sexual

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

what are the two steps of eukaryotic cell divison?

A

nuclear division and cytoplasmic division

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

the nuclear division step of eukaryotic cell division includes what processes?

A

mitosis and meiosis

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

the cytoplasmic division step of eukaryotic cell division includes what processes?

A

cytokincaia

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

Nuclear division resulting in two cells, each with nuclear genetic material identical to the original cell

A

mitosis

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

is there a change in chromosome number in mitosis?

A

no

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

is there a change in ploidy in mitisos?

A

no, ploidy remains the same the entire time (2N–> 2N+2N or N–> N+N)

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

Nuclear division that results in four cells, each with only 1/2 the genetic information of the original cell, and each with a different subset of the genetic material in the original cell.

A

Meiosis

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

what is an example of a ploidy change in meiosis

A

2N–>N+N+N+N

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

what kind of cells are formed by mitosis?

A

vegetative cells
Reproductive cells
Spores
gametes

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

can gametes undergo fertilization

A

yes

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

can spores under go fertilization?

A

no, only mitosis

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

syngamy

A

fertilization

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

what kind of cells are formed by mitosis?

A

Reproductive cells
Spores
gametes

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

how many types (styles) of life cycle are there?

A

3

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

how do the different types of life cycles differ from each other?

A

•Differ in timing of meiosis and mitosis.
•Differ in ploidy of free-living stage(s).
(diploid, haploid, both)

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

what is the ploidy of a gamete?

A

N

22
Q

what is the ploidy of a zygote?

A

2N

23
Q

what is the ploidy of the cells produced by meiosis?

A

N

24
Q

what is the ploidy of the cells produced by fertilization

A

2N

25
Q

what are the different forms of gametes that we see in nature?

A

Isogamy, anisogamy, oogamy

26
Q

Isogamy

A

both gametes are identical in size and both are motile by flagella.

27
Q

Anisogamy

A

gametes are different sizes, both gametes are motile by flagella.

28
Q

Oogamy

A

large non-motile egg, smaller motile sperm.

29
Q

is the haploid or diploid phase dominant in a diplontic life cycle

A

the diploid phases

30
Q

which phase is multicellular and free living in a diplontic life cycle

A

the diploid phases

31
Q

what produces gametes in a diplontic life cycle

A

meiosis

32
Q

are there spores in a diplontic life cycle?

A

no

33
Q

what kind of organisms undergo gametic meiosis?

A

animals, some protists, and algae

34
Q

is the haploid or diploid phase dominant in a haplontic life cycle

A

the haploid phase

35
Q

describe the haploid phase of a haplontic life cycle

A
  • Multicellular
  • long lived
  • Free living
36
Q

what is the diploid stage of a haplontic life cycle

A

a zygote

37
Q

what kind of meiosis does an organisms that has a haploid life cycle undergo

A

zygotic meiosis

38
Q

what produces spores in an organism with a haplontic life cycle

A

meiosis

39
Q

what produces gametes in an organism with a haplontic life cycle

A

mitosis

40
Q

what kind of organisms have zygotic meiosis

A

fungi, some algae

41
Q

which stage of the sporic life cycle is free living and usually multicellular

A

both the haploid phase and diploid phase

42
Q

what kind of meiosis does an organisms that has a sporic life cycle undergo

A

sporic meiosis

43
Q

what does meiosis produce in organisms with a sporic life cycle

A

spores

44
Q

what does mitosis produce in organisms with a sporic life cycle

A

gametes

45
Q

which type or life cycle has an alteration of generations

A

a sporic life cycle

46
Q

what are the variations of the sporic life cycle

A

isomorphic generations

heteromorphic generation

47
Q

what are isomorphic generations

A

sporophyte and gametophyte look similar

48
Q

what is a gametophyte?

A

the gamete producing stage (N)

49
Q

what is a sporophyte?

A

the spore producing stage (2N)

50
Q

what are heteromorphic generations?

A

the sporophyte and gametophyte look different

51
Q

example of an organism with heteromorphic generations

A

the laminaria

52
Q

example of an organism with isomorphic generations

A

the ulva

Botany (8 decks)

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