Meiosis and Genetics

In which phase does crossing-over happen?

• Prophase I

• Prophase II

• Metaphase I

• Anaphase II

Meiosis results in the production of _________________

• 4 diploid cells called gametes

• 4 haploid cells called gametes

• 1 cell which is a body cell

• millions of body cells

Tags

NGSS.HS-LS3-2

Another name for sex cells, like egg and sperm, is ____________________

• oocytes

• chromoblasts

• fertilization

• gametes

What is separated during meiosis II?

• sister chromatids

• homologous chromosomes

• spindle fibers

• crossing over

What is separated during meiosis I?

• homologous chromosomes

• sister chromatids

• spindle fibers

• crossing over

Normal-
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA

• no mutation
• substitution
• insertion
• deletion

Tags

NGSS.HS-LS3-2

If you are missing or have an extra base  at the end of your mutated DNA . What type of mutation occurred?

• Substitution
• Frameshift
• Duplication 
• Insertion

Tags

NGSS.HS-LS3-2

Original: ATC CAT
Mutation: ATC GCAT
What mutation occurred?

• deletion
• insertion
• silent
• transverse

Tags

NGSS.HS-LS3-2

A frameshift mutation can occur with either _________ or __________ mutations.

• Addition, division
• Deletion, substitution
• Addition, substitution
• Addition, deletion

Tags

NGSS.HS-LS3-2

What is the definition of DNA mutation? 

• The original DNA strand
• The strand with four pairs 
• A change in the DNA strand
• The strand in a double helix 

Tags

NGSS.HS-LS3-2