17.2 Heredity & Genetics

The passing of genetic traits from parent to offspring is called

• cross-pollination
• cross-breeding
• heredity
• genetics

Heredity defines the passage of genetic material from –

• parent to child

• sibling to sibling

• mate to mate

• predator to prey

Which of the following statements accurately denotes the frequency of expression of dominant and recessive traits?

• Dominant traits = always / Recessive = never

• Dominant traits = never / Recessive = sometimes

• Dominant traits = always / Recessive = sometimes

• Dominant traits = sometimes / Recessive = sometimes

What is DNA? (Check the correct boxes)

• Deoxyribo Nucleic Acid

• Offspring

• located in the nucleus

• determines the genetic traits of an organism

Genes come in pairs

• two copies are inherited from one parent

• one copy is inherited from each parent

• four copies are inherited and 2 get discarded

The purpose of genetic testing during pregnancy is ______?

• To rule out that the mother is at risk for genetic disorders

• To assess if the fetus is at risk for genetic disorders

• To assess if the mother is likely to develop gestational diabetes

This invasive procedure requires the extraction of fluid from the amniotic sac of the mother.

• Chorionic Villus Sampling

• Amniocentesis

Twins conceived through one egg and one sperm  are called...

• fraternal
• identical

The trait of a dominant gene will appear whenever it is present

• True

• False

How is the disorder diagnosed??

• Genetic Testing

• X-ray

• Blood Test