3rd quarter review-biology

Which is true about asexual reproduction?

• Takes only one mate to reproduce and takes a longer time to reproduce
• Takes a shorter amount of time to reproduce and it takes two mates to reproduce
• Reproduces diverse offspring and takes a longer time to reproduce
• Takes only one mate to reproduce and takes a shorter time to reproduce

What percentage of chromosomes are contributed by a sperm cell?

• 75%
• 25%
• 50%
• 100%

What is an advantage of sexual reproduction?

• Allows genetic variation
• Only needs one parent
• Happens very quickly
• Offspring are exact copies of parent

If the message never gets through for a cell to stop dividing and it just keeps dividing over and over again, what can form?

• tumor
• freckle
• goosebump
• scab

Another name for a sex cell is a:

• gamete
• embryo
• bone cell
• muscle cell

After meiosis is complete, the new cells:

• are all identical
• are all different
• are half identical and half different
• are all stretched out

The process on the left is:
The process on the right is:

• Left: meiosis
  Right: meiosis
• Left: meiosis
  Right: cloning
• Left: mitosis
  Right: meiosis
• Left: mitosis
  Right: mitosis

Normal cells become cancer cells when 

• gene mutations cause uncontrolled mitotic division
• cells do not respond normally to control mechanisms
• regulation of cell growth and division is lost
• all of these reasons

As a result of mitosis, each of the two new cells produced from the parent cell during cytokinesis

• receives a few chromosomes from the parent cell
• receives an exact copy of all the chromosomes present in the parent cell
• donates a chromosome to the parent cell
• receives exactly half the chromosomes from the parent cell.

Domestic cats have 38 chromosomes in their skin cells. How many chromosomes are in the gamete of a domestic cat?

• 76
• 38
• 19
• 9