6.1 and 6.2 Genetics

Question 1

What is a Gene?

Answer 1

a gene carries the information that determines your traits ( Ex. Eye Colour)

Question 2

How is DNA packaged in Eukaryote cells?

Answer 2

DNA is wrapped around proteins known as histones to form structures called nucleosomes.

Question 3

What is a Histone?

Answer 3

Eight histone proteins can come together to make up something called a nucleosome

Question 4

What is a Nucleosome?

Answer 4

A single nucleosome consists of about 150 base pairs of DNA sequence wrapped around a core of histone proteins

Question 5

How are Prokaryotes packaged?

Answer 5

DNA is packaged in simple loop-shaped chromosomes called plasmids.

Question 6

What is a Genome?

Answer 6

A genome is the complete set of genetic information of an organism. It contains all the instructions for creating and maintaining life

Question 7

Which Scientist first “discovered” DNA

Answer 7

Meischer:
-he studied the composition of the
nucleus
- Collected pus from
bandages (mostly
WBC’s)
Extracted an
unknown substance
that was acidic and
contained phosphorus (DNA)
-Called it named

Question 8

Which Scientists Studied how bacteria can change?

Answer 8

Griffith
- he studied pneumonia bacteria
- studied the S