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WorksheetsSci9 Life Sci Unit Exam Review
Total questions: 45
Worksheet time: 26mins
What is the correct order of the stages of mitosis?
Interphase, Anaphase,
Prophase, Metaphase, Telophase, Cytokinesis
Interphase,
Prophase, Metaphase, Anaphase Cytokinesis,
Telophase
Telophase, Metaphase,
Interphase, Anaphase, Prophase, Cytokinesis
Interphase,
Prophase, Metaphase, Anaphase, Telophase, Cytokinesis
What is genetic engineering?
Adding together DNA from two different species
Adding together DNA from the same species
Replacing damaged DNA with healthy DNA
Replacing healthy DNA with damaged DNA
What is gene therapy?
Adding together DNA from two different species
Adding together DNA from the same species
Replacing damaged DNA with healthy DNA
Replacing healthy DNA with damaged DNA
What is selective breeding?
Selecting what breeds you like best
Picking which male and female will breed to get certain traits
Survival of the fittest
Selecting what DNA you like the best
How are cells made in meiosis different than cells made in mitosis?
Half the amount of chromosomes
Twice the amount of chromosomes
The DNA is unique
The DNA is cloned
What is the cause of Down Syndrome?
Damaged DNA
Extra cells in the body
Extra chromosome
Recessive alleles
What is the cause of cystic fibrosis?
DNA damage
Extra cells in the body
Extra chromosome
Recessive alleles
What is the cause of FAS?
DNA damage
Extra cells in the body
Extra chromosome
Recessive alleles
How many chromosomes does a human body cell have?
23
46
92
101
How many chromosomes does a human sex cell have?
23
46
92
101
How many chromosomes do you get from each parent?
23
46
92
101
Which are names for a baby before it is born?
Fetus
Zybron
Embryo
Zygote
Fimbrion
Where does conception happen?
Ovary
Vas deferens
Fallopian tube
Uterus
Where does a fetus/baby develop?
Ovary
Vas deferens
Fallopian tube
Uterus
What happens in prophase?
The chromosomes condense and the centrioles grow spindles.
The chromosomes get enveloped by two new nucleuses.
The chromosomes line up in the middle of the cell.
The chromosomes move away to either side of the cell.
What happens in metaphase?
The chromosomes condense and the centrioles grow spindles.
The chromosomes get enveloped by two new nucleuses.
The chromosomes line up in the middle of the cell.
The chromosomes move away to either side of the cell.
What happens in anaphase?
The chromosomes condense and the centrioles grow spindles.
The chromosomes get enveloped by two new nucleuses.
The chromosomes line up in the middle of the cell.
The chromosomes move away to either side of the cell.
What happens in telophase?
The chromosomes condense and the centrioles grow spindles.
The chromosomes get enveloped by two new nucleuses.
The chromosomes line up in the middle of the cell.
The chromosomes move away to either side of the cell.
What is a dominant trait?
You only need one dominant allele to show the trait
You need two dominant alleles to show the trait
You need one dominant and one recessive allele to show the trait
You need two recessive alleles to show the trait
What is a recessive trait?
You only need one dominant allele to show the trait
You need two dominant alleles to show the trait
You need one dominant and one recessive allele to show the trait
You need two recessive alleles to show the trait
What happens if you have one dominant allele and one recessive allele?
The dominant trait shows
The recessive trait shows
If a baby has two X chromosomes (XX), what reproductive system will they usually get?
Male
Female
If a baby has one X and one Y chromosome (XY), what reproductive system will they usually get?
Male
Female
Select what are true for asexual reproduction:
One parent
Two parents
Lots of genetic diversity
Less genetic diversity
Select what are true for sexual reproduction:
One parent
Two parents
Lots of genetic diversity
Less genetic diversity
A starfish loses an arm but the arm generates a whole new starfish. This is an example of what kind of asexual reproduction?
Parthenogenesis
Budding
Binary fission
Fragmentation
A bacterium splits into two identical bacteria. This is an example of what kind of asexual reproduction?
Parthenogenesis
Budding
Binary fission
Fragmentation
A yeast grows a smaller yeast on its side that eventually pinches off. This is an example of what kind of asexual reproduction?
Parthenogenesis
Budding
Binary fission
Fragmentation
A komodo dragon fertilizes her own eggs without help from a male. This is an example of what kind of asexual reproduction?
Parthenogenesis
Budding
Binary fission
Fragmentation
What is true about a heritable trait?
Not passed from parent to child
Passed from parent to child
Example: skin colour
Example: scars
What is true about a non-heritable trait?
Not passed from parent to child
Passed from parent to child
Example: skin colour
Example: scars
What is inbreeding?
Mating with close relatives so that the genetic diversity is high
Mating with close relatives to that the genetic diversity is low
Mating with strangers so that the genetic diversity is high
Mating with strangers so that the genetic diversity is low
What is cancer?
An infection
Cells dividing really slow
Cells dividing kind of fast
Uncontrollable cell division
What does carcinogen mean?
A thing that causes DNA to duplicate
A thing that causes sicknesss
A thing that causes cancer
A thing that causes cells to die
Which is in the correct order?
Gametes, zygote, embryo, fetus
Zygote, gametes, fetus, embryo
Zygote, gametes, embryo, fetus
Gametes, zygote, fetus, embryo
What is true about conception?
Happens in the fallopian tube
Sperm and egg coming together
Can be stopped by birth control
Happens in the vagina
What does progesterone do? (Pick 2)
Shed uterus' lining
Increase estrogen production
Cause body hair to grow
Matures sperm
What does estrogen do? (Pick 2)
Shed uterus' lining
Increase testosterone production
Maintain female reproductive system
Helps sperm production
What does testosterone do? (Pick 2)
Increase sex drive
Increase breast size
Create secondary male sex characteristics
Shed uterus' lining
What does luteinizing hormone do? (Pick 2)
Cause testosterone production
Cause estrogen production
Help a successful pregnancy
Increase sex drive
What does follicle stimulating hormone do? (Pick 2)
Cause testosterone production
Cause estrogen production
Increase sperm production
Increase sex drive
What kind of contraceptive is hormonal?
Spermicide
The Pill
Condoms
Abstinence
What kind of contraceptive is a barrier?
Spermicide
The Pill
Condoms
Abstinence
Which of the following contraceptive methods also protect against STDs?
IUD
Condoms
Diaphragm
Abstinence
True or false? A Y chromosome can only be carried by sperm and never eggs.
True
False
