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10 questions
Interphase is when a cell is growing, replicating its DNA, and carrying out cell processes. Which of these is correct regarding when Interphase happens?
It occurs once before mitosis and once before meiosis.
It occurs once before mitosis and twice before meiosis.
It occurs once before mitosis and does not occur before meiosis.
It does not occur before mitosis and occurs once before meiosis.
Why would it be important to replicate DNAbefore a cell divides in mitosis or meiosis?
In order for enough genetic information to be transferred into daughter cells.
In order for the cell to be able to increase in size.
In order for the DNA to be contained in the nucleus.
In order for the cell to re-order the DNA sequencing in the new cells.
Meiosis produces different types of cells than mitosis. Which cells would NOT be members of the "meiosis club,"?
gametes
body cells
sperm cells
egg cells
In meiosis, crossing over occurs in prophase 1. What is the significance of crossing over?
Crossing over ensures chromosomes are evenly divided into daughter cells.
Crossing over can lead to genetic variation in daughter cells.
Crossing over can create mutations in daughter cells.
Crossing over allows chromosomes to line up in the center of the cell.
In humans, sperm and egg cells each have _____ chromosomes. A fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
23, 46
46, 23
2, 4
50, 100
A fertilized egg cell starts dividing. After 9 months, a human baby is fully developed. What process is responsible for this growth?
Meiosis
Mitosis
Crossing Over
Interphase
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