Genetics Review

What do you call a section of DNA that codes for a specific trait?

• nucleus
• chromosome
• gene
• DNA

How many chromosomes are found in human egg and sperm cells?

• 20
• 23
• 26
• 46

The study of heredity:

• Genetics
• Biology
• Physiology
• Cytology

The passing of traits from parents to offspring:

• Heredity
• Dominant
• Recessive
• Polite

Which sex chromosomes do females have?

• XX
• XY
• AB
• BA

Which sex chromosome do males have?

• XX
• XY
• AB
• BA

The mRNA codon for the DNA segment ATG is

• UAC

• UTC

• AUG

• ATC

A mutation

• is a change in the cells mRNA

• is a change in an organisms genetic information

• results in adaptations

• causes disease

What is true of cloning?

• It is safe, effective and commonly used

• It has moral and ethical concerns, but could be beneficial in the medical field

• We have never successfully created a cloned animal, but we hope to in the future

• Cloned animals are much healthier than the original animal.

What nitrogenous base pair does "Adenine" pair up with in DNA replication?

• Adenine
• Cytosine
• Thymine
• Guanine