Genetics review

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

What kind of cells are made in MEIOSIS?

• Haploid cells
• Diploid Cells
• Skin Cells
• Liver Cells

Diploid Cells are represented by

• 2n
• n
• 4n
• 1/2 n

The process of crossing over occurs in what phase of meiosis?

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

If the Diploid number of Carrots is 18, the haploid number is

• 18
• 9
• 27
• 36

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

When homologous chromosomes match up, they form a structure call a ___________.

• tetrad (pair of chromosomes, one from mom and one from dad)
• triad
• diploid
• quad (group of 4 replicated chromosomes, 2 from mom and 2 from dad)

Crossing over creates

• male genotype
• genetic variation (differences)
• DNA replication
• mitosis

What phase is represented?

• metaphase 1
• metaphase 2
• anaphase 1
• anaphase 2

What phase is  shown in the picture?

• metaphase 2
• anaphase 2
• metaphase 1
• telophase 1