All of the following are
sources of genetic variety except
|
|
D.
synapsis
|
| |
Which of these is not
a unique feature of meiosis? |
|
Diploid
daughter cells
|
| |
The arrangement of the
chromosomes in metaphase I of meiosis is not important as long as homologues
pair. |
|
A.
TRUE
|
| |
The random orientation of different
pairs of homologous chromosomes on the metaphase plate is responsible for
__________. |
|
Independent assortment
|
| |
The process of independent
assortment refers to: |
|
the orientation of
homologous chromosomes at metaphase I
|
| |
Which scientist is credited with proposing in 1887 that an egg
and a sperm fuse to form a zygote?
|
|
E.
van
Beneden
100%
|
| |
The alignment of homologous
chromosomes with the exchange of genetic information between them is known as: |
|
C.
crossing
over
|
| |
During which stage of
meiosis does crossing over occur? |
|
A.
Prophase
I
100%
|
| |
Bacteria reproduce by
meiosis. |
|
FALSE |
| |
Independent assortment of
homologous chromosomes occurs at: |
|
metaphase I |
| |
In plants like the fern,
haploid cells produced by meiosis divide by _________, forming a multicellular
haploid phase |
|
mitosis |
| |
In animals, asexual
reproduction can involve the budding off of cells which grow by mitosis into a
new individual. |
|
TRUE |
| |
When does separation of homologous chromosomes occur?
|
|
Anaphase I |
| |
Some organisms are able to
reproduce both sexually and asexually |
|
TRUE |
| |
In humans, how many
different kinds of gametes can be produced due to independent assortment only? |
|
223 |
| |
Meiosis is also known as
reduction division |
|
TRUE |
| |
|
Reproduction by mitosis only is asexual.
|
|
TRUE |
| |
After meiosis, the gamete joins with another gamete in all
eukaryotic organisms.
|
|
FALSE |
| |
In anaphase I, ________ separate and in anaphase II,
____________ separate.
|
|
A.
homologous
chromosomes, chromatids
|
| |
Why is crossing over not
possible in meiosis II? |
|
A.
Because
homologous chromosomes are no longer in the same cell.
|
| |
The main difference between
prophase I and II is that in prophase I: |
|
synapsis and crossing over
occurs |
| |
In humans, _____________
divide by meiosis to produce eggs and sperm. |
|
germ-line cells |
| |
Which is incorrect about meiosis?
|
|
Sister
chomatids separate in anaphase I.
|
| |
Animals do which type of
reproduction? |
|
Sexual
and asexual
|
| |
During which stage do
chromosomes line up in single file on the equatorial plane? |
|
C.
Metaphase
II
|
| |
