Mod 2 Genetics

Question 1

Geneticist

Answer 1

Specialist in the study of genetics and role of genes in health and disease

Question 2

Dominant gene

Answer 2

When dominant gene is Inherited from either parent offspring will inherit
Eg freckles, Huntington disease

Question 3

Recessive

Answer 3

Same recessive gene is Inherited from both parents offspring will have the condition.
Eg sickle cell anemia

When recessive gene is inherited from one parent offspring does not have the condition

Question 4

Genome

Answer 4

Complete set of genetic information of an organism.

Question 5

Chromosome

Answer 5

Genetic structure located within the nucleus of each cell.

- made up of DNA molecules

Question 6

Somatic cell

Answer 6

All cells except gametes(sex cells)
- contains 46 chromosomes arranged in 23 pairs
-

Question 7

Gamete cell

Answer 7

Sperm or ovum

Each has 23 chromosomes

Question 8

DNA

Answer 8

• contains the chromosome pairs
• inside the nucleus of a cell
• red blood cells ( erythrocytes ) has NO DNA… because they don’t have a nucleus
• identical twins have identical DNA

Question 9

Genetic mutation

Answer 9

Somatic cell mutation- not transferred to next generation

Gamete cell mutation- transferred to next generation

Question 10

Genetic engineering

Answer 10

Splicing of genes for scientific or medical purpose

Eg production of human insulin from modified bacteria