MINITEST TOMORROW MEIOSIS REVIEW ANSWERS. QUESTION # 1 Match the following. F Individual chromosomes...
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Transcript of MINITEST TOMORROW MEIOSIS REVIEW ANSWERS. QUESTION # 1 Match the following. F Individual chromosomes...
M I N I T E S T T O M O R R O W
MEIOSIS REVIEW ANSWERS
QUESTION # 1
• Match the following.• F Individual chromosomes line up at the equator• A Homologous chromosomes pair up; crossing-over
occurs• G Centromere splits; sister chromatids move to
opposite poles• E Chromosomes condense; spindle fibers form• D Cell divides forming 2 daughter cells• B Homologous chromosome pairs line up at the
equator• C One chromosome from each pair moves to each pole• H Cell divides forming 4 haploid daughter cells
QUESTION #2
•What (specifically) is being made during meiosis?•Gametes• Sperm• Eggs
QUESTION #3
•How many times does the cell divide during meiosis?• Two times
QUESTION #4
• If an organism has 16 chromosomes in one of its body cells, how many chromosomes would its sex cells have?• 8
QUESTION #5
•What is crossing over? Draw an example to show crossing-over.•When pieces of chromosomes cross over each other, resulting in a new combination of genes
QUESTION #6
•When does crossing-over occur during Meiosis?• Prophase I
QUESTION #7
•Gametes are haploid/diploid.
QUESTION #8
•What does haploid mean?•One of each chromosome
QUESTION #9
•What does diploid mean?• Two of each chromosome
QUESTION #10
•What is a tetrad and when does it form?• A tetrad is four sister chromatids side-by-side• It forms during prophase I
QUESTION #11
•How many sperm are produced per parent cell during meiosis?• Four
QUESTION #12
•How many eggs are produced per parent cell during meiosis?•One
•Why is this different from the number of sperm produced?• The cells divide unevenly
QUESTION #13
•Why does the chromosome number need to be cut in half during meiosis?• So that when the sperm and egg combine, the zygote will have the correct number of chromosomes
QUESTION # 14
Mitosis Meiosis
Type of CellRegular body
cellsSex cells only
# of divisions 1 2
# of daughter
cells2 4
diploid/haploid
Diploid (identical to
parent)
Haploid (different from
parent)
purposeGrowth &
repairreproduction
QUESTION #15
•Know the Comparing Mitosis and Meiosis worksheet information.