Transcript 100

Hosted
by
Mr. Brett
Genetics
Reproduction
Cells
Mitosis &
Meiosis
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Chromosomes are made of strands of DNA.
What are chromosomes made of?
Row 1, Col 1
A gamete is a sex cell. Examples: egg and sperm.
What is a gamete?
(Give 2 examples for
a bonus 50 each.)
1,2
Osmosis.
What is the name for the process
where matter passes in and out
of a cell?
1,3
Haploid cells. They are usually reproductive cells.
What is the name of the type of
cell produced by meiosis.
(Bonus 100:
What usually is their purpose?)
1,4
Positive mutations help the individual survive and
reproduce. Negative mutations hinder the individual.
Describe the difference between
positive and negative mutations.
2,1
Sponges, hydras and starfish can reproduce
asexually.
Name an animal that reproduces
asexually.
(50 bonus for each extra animal.)
2,2
Chromosomes.
What is contained
in the nucleus?
2,3
Meiosis (2 divisions happen to result in 4 cells.)
Which form of
cell division is
represented by
this image?
How do you
know?
(Bonus 100)
2,4
Gender, Eye colour, hair colour, height, skin colour,
facial structure
Name 3 things that your genes control.
(100 each for a max of 500)
3,1
External fertilization.
What kind of reproduction is
being shown by these pictures?
3,2
Organelles are parts of a cell that perform a
specific function. Examples would be the
nucleus, cell wall, cytoplast, cell membrane,
vacuoles and chloroplast.
What is an organelle?
Give 2 examples of organelles
that would be found in an
animal cell.
3,3
To grow tissue and replace dead cells.
What is the purpose of mitosis?
3,4
A gene is a section of DNA which controls a
characteristic.
What is a gene?
4,1
Algae, moss, ferns, puffballs, mushrooms.
Name 4 organisms that
reproduce by spores.
(100 each)
4,2
A chloroplast is the part of a cell that performs
photosynthesis. Only plant cells have chloroplasts.
What is a chloroplast?
(Bonus 100: What kind of cell has one?)
4,3
32 (1 x 2 x 2 x 2 x 4 = 32.)
Suppose you start with one cell.
If mitosis happens 3 times and then
meiosis happens once, how many cells
you have at the end?
4,4
If both parents have a brown eye gene and a blue eye gene, then
they will both have brown eyes since the blue eye gene is recessive.
If they both pass on the blue eye gen to a child, the child will have
blue eyes.
Describe the process by which two
parents with brown eyes can have
a child with blue eyes.
5,1
They are methods of dispersal for pollen, seeds and
spores.
What do the following things have
in common?
Wind, poop, insects and
hummingbirds.
5,2
It is an animal cell because it has no chloroplast or cell
wall. It is also round.
Point to the following in
this diagram of a cell:
1. Nucleus
2. Cell membrane
3. Cytoplasm
What kind of cell is this
and how do you know?
5,3
Haploid cells have only half the number of
chromosomes (23 instead of 46.) Their chromosomes are
a mix of features from the original 46.
Meiosis produces cells called haploid cells.
Describe 2 key features of haploid cells.
5,4