Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
This is the example of asexual reproduction where the parent cell divides into equal parts.
|
Mitosis
|
|
|
In mitosis, each part is usually an ______ _______.
|
Exact duplicate
|
|
|
In mitosis, all offspring will have the same number of ___________ as the parent cell.
|
Chromosomes
|
|
|
The first step of mitosis includes duplication of the ______ and __________. This is followed by division of the cell with _________ ___________.
|
genes, chromosomes, identical characteristics
|
|
|
What are the five phases of mitosis?
|
interphase, prophase, metaphase, anaphase, and telophase
|
|
|
What is an example of sexual reproduction?
|
Gametogenesis
|
|
|
Gametogenesis consists of the union of two ______ ______ cells, also called _________.
|
sexual germ, gametes
|
|
|
Gametes unite to form a new individual organism called a _______.
|
Zygote
|
|
|
In Gametogenesis, one gamete comes from the _______ and one from the ________.
|
male (sperm), female (ovum/egg)
|
|
|
What is a reduction of the number of chromosomes in the sexual germ cell?
|
Meiosis
|
|
|
Meiosis consists of 2 _______ _______ and 1 _________ __________.
|
nuclear divisions, chromosomal division
|
|
|
Before reproduction can be completed, a cell has to go through ________.
|
Meiosis
|
|
|
_______ is the number of chromosomes in all body cells (after fertilization).
|
Diploid
|
|
|
_______ is the number of chromosomes in sex cells (before fertilization).
|
Haploid
|
|
|
During fertilization, after the sperm strikes the egg, a _______ _______ forms which does not allow any other sperm to enter.
|
chemical barrier
|
|
|
In fertilization, shortly after the 2 cells unite, _______ (the first cell division) will take place.
|
Mitosis
|
|
|
Initial cell division usually starts within _________ after fertilization.
|
24 hours
|
|
|
(Fertilization) Cell division continues until a round mass of about 12-16 cells formed called a _______.
|
Morula
|
|
|
Morula consists of an outer layer of ________ cells and an _______ cell mass.
|
trophoblast, inner
|
|
|
The trophoblast cells will soon become part of the _______ _______, such as the placenta.
|
fetal membranes
|
|
|
The inner cell mass will become _______ ______.
|
Embryonic tissue
|
|
|
What phase of mitosis is the resting phase of the cell?
|
Interphase
|
|
|
Which phase of mitosis is where things start moving and chromosomes become visible as chromatids?
|
Prophase
|
|
|
In which phase of mitosis do spindle fibers appear and the cell loses its nuclear membrane?
|
Metaphase
|
|
|
In which phase of mitosis do the spindle fibers duplicate and pull apart?
|
Anaphase
|
|
|
In which phase of mitosis does the furough appear between 2 identical cells which eventually totally split?
|
Telophase
|
|
|
How many chromosomes does a gamete (sperm or egg) have?
|
23
|
|
|
How many chromosomes does a human zygote have?
|
46
|
