Semester 2 Review

How many chromosomes are found in each cell of your body?

• 46

• 23

• 40

• 45

Tags

NGSS.HS-LS3-1

What is a long coiled strand of DNA and proteins?

• gene

• RNA

• chromosome

• genome

In humans, the haploid number of chromosomes is ____.

• 23

• 46

• 69

• 92

Tags

NGSS.HS-LS3-1

In which stage of MEIOSIS does crossing over occur? (The exchange of genetic material between chromosomes in a tetrad.)

• Anaphase I

• Metaphase I

• Prophase I

• Telophase I

Name this phase of Meiosis

• Anaphase II

• Anaphase I

• Metaphase I

• Metaphase II

Name this phase of Meiosis:

• Metaphase I

• Anaphase II

• Anaphase I

• Metaphase II

Who is Gregor Mendel

• an Austrian Monk from the mid 1800s who contributed to the study of Genetics

• The scientist who discovered the structure of DNA

• a British scientist who discovered penicillin

• The scientist who used X-Ray Crystallography to shed light on the structure of DNA

Tags

NGSS.HS-LS3-2

If two alleles are the same for a certain trait they are considered

• Homozygous

• Twins

• Heterozygous

• Common

Tags

NGSS.HS-LS3-1

The passage of genetic instructions from one generation to the next is known as

• Alleles

• Ancestry

• Heredity

• Variation

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This variation of a gene can only be expressed if it is received from both parents

• Shy

• Heterozygous

• Variation

• Recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2