WorksheetsMeiosis Biology
Total questions: 25
Worksheet time: 13mins
All of the following result from Meiosis EXCEPT
gametes are made
the cells made have different genetic material
the chromosome number reduces in half from the parent cell
cells that are made are identical
All of the following are true about human gametes EXCEPT
gametes are haploid
an egg is an example of a gamete
a zygote is an example of a gamete
gametes contain NO chromosome pairs
What is the goal of Meiosis I ( the first division)
add tails to the sperm
create variety in the ending cells
reduce the chromosome number in half from starting cell
bring the pairs back together
What is the goal of Meiosis II (the second division)
reduce the chromosome number in half from the starting cell
separate the pairs
create variety
put a tail on the sperm
Diploid cells have pairs present. Which cell is NOT diploid
somatic cell
sperm
zygote
germ cell
What process converts a diploid cell (2n) into haploid (n) cells
mitosis
meiosis
fertilization
During Meiosis, the cell is first haploid
when the homologous pairs are copied
by the end of meiosis 1, when the pairs separate
by the end of meiosis II, when the sisters separate
by the end of interphase when the spindle fibers attach
What process grows the zygote into a multi celled embryo?
mitosis
meiosis
fertilization
All your somatic cells are identical genetically
True
False
Your genetics is 2n=46. What does the 46 mean?
In each cell, there are 46 total chromosomes
In your entire body, you have 46 chromosomes
There are 46 pairs of chromosomes in each body cell
The cell is 46 years old
A human gamete is n=23. How many pairs of chromosomes does the gamete have?
Zero
2
23
46
Which format represents meiosis the best?
4 --> 2,2,2,2
4---> 4,4
2--> 4,4,4,4
If a cell is 2n=20 and it does meiosis, its gametes will have 10 chromosomes and no pairs
True
False
A cell is 2n=10. It does MITOSIS. How many chromosomes will be in EACH new cell?
5
10
20
Somatic cells are normal body cells. What type of cell division do they undergo?
mitosis
meiosis
fertilization
diffusion
Sexual reproduction is used to
make clones
make offspring with genetic variety
A gamete with 2 chromosome 21 failed to separate the chromosomes correctly. If fertilization occurs the baby will have Down's Syndrome
True
False
Which of the following will NOT create shuffling of genes and variety
separating the pairs
crossing over of the pairs
random line up of all the pairs each meiosis
separating identical sisters
Which of the following is when "A" allele moves away from the "a" allele
crossing over
random line up
separation of pairs
separation of sisters
