Genetics Intro

Where is human DNA stored?

• In brain cells but not muscle cells

• In the cells of embryos but not adults

• In the nucleus of each cell

• In the cytoplasm of each cell

Come in four types: adenine (A), cytosine (C), guanine (G) and thymine (T):

• DNA

• Gene

• Base

Adenine (A) pairs with:

• Adenine (A)

• Cytosine (C)

• Guanine (G)

• Thymine (T)

Cytosine (C) pairs with:

• Adenine (A)

• Cytosine (C)

• Guanine (G)

• Thymine (T)

Which of these are possible base pairs?

• A-T, G-C

• A-G, T-G

• A-T, G-T

• A-G, T-C

Which sequence of complementary DNA bases would pair with this partial strand - ATG TGA CAG?

• ATG TGA CAG

• TAC ACT GTC

• GTA AGT GAC

• CAT TCA CTG

A codon/triplet is a sequence of:

• Three bases that code for an amino acid

• Three bases that code for a protein

• Hundreds of bases that code for an amino acid

• Hundreds of bases that code for a protein

Tags

NGSS.HS-LS1-1

Which of the following could be codons/triplets?

• TCA

• DNA

• CGC

• ATGCCATTGCAT

Which of the following condons/triplets codes for the amino acid leucine? (read from the inner circle outwards)

• GGA

• ATT

• TTG

• GCA

Which of the following condons/triplets codes for the amino acid proline?

• GGA

• TCC

• CCC

• ATC

Tags

NGSS.HS-LS1-6