Any sex cell

1
Any sex cell

• Gamete

A permanent change in the DNA or chromosomes

• Mutation

2
Hereditary information in a cell during mitosis.

• Chromosome

All cells in an organism that are in the diploid
stage!!!

• Body cell

3
When chromosomes are in PAIRS!

• Diploid

These are made by the centrioles and pull doubled
paired chromosomes apart.

• Spindle fibers

4
When an egg and sperm combine to make a new
organism.

• Fertilization

The life span of a cell, including growth,
maturing and mitosis.

• Cell cycle

5
When the chromosomes are in single strands.

• HAPLOID

The new cell that forms when an egg is fertilized
by a sperm.
ZYGOTE
6
This forms only in plant cells during mitosis.

• Cell plate or equatorial plate

This produces new cells with HALF the number of
chromosomes as the original cell
MEIOSIS
7
Which statements apply to sexual reproduction?

• Occurs with all cells
• Involves 2 cells
• New offspring gets ½ of genetic information from
  each parent
• New offspring gets all genetic information from
  one parent.
• Involves the gametes

B C E
8
For the next set you are to decide if it is a
characteristic of mitosis , meiosis or both.

• 1. Metaphase is the 2nd phase
• Both
• 2. Uses only body cells
• Mitosis
• 3. Makes 2 new cells with same of chromosomes
• Mitosis

9
Mitosis, meiosis or both

• 4. Cell divides once
• Mitosis
• 5. Makes new gametes
• Meiosis
• 6. Is a type of cell division
• Both

10
Mitosis, meiosis or both

• 7. Makes 4 new cells
• Meiosis
• 8. Telophase is the 4 phase
• Both
• 8. Chromosome is reduced by half
• Meiosis

11
What phase is being described?

• 1. Resting phase, cell grows and matures
• Interphase
• 2. Cell membrane pinches in two
• Telophase
• 3. Spindle fibers pull chromosome apart
• Anaphase

12
What phase is being described?

• 4. This is the 4th phase
• Telophase
• 5. Nuclear membrane disappears, chromosomes have
  thickened and are visible.
• Prophase
• 6. This is the 2nd phase.
• metaphase

13
What is the phase?

• 7. Two new cells with same of chromosomes have
  formed
• Cytokinesis
• 8. The 3rd phase
• Anaphase
• 9. Chromosomes are pulled to opposite sides of
  the cell.
• Anaphase

14
What percent of our genetic information comes
from the male parent?

• 50
• What percent of our genetic information comes
  from the female parent?
• 50

15
Choose the statements that would fit with asexual
reproduction.

• DNA is identical to parent
• Goes thru meiosis
• Need only one parent
• Budding is an example
• Goes thru mitosis
• Uses gametes
• Regeneration is an example

A C D E G
16
Drawings are fromhttp//www.bioweb.uncc.edu/biol1
110/d-stages.htm

17
What phase is this?

• Telophase

18
What phase is this?

• Anaphase

19
What phase is this?

• Metaphase

20
What phase is this?

• Interphase

21
What phase is this?

• Prophase

22
Sequence the steps in order.
A
B
C
D E C A B
E
D