DNA

Question 1

what is DNA?

Answer 1

genetic information that is passed from parents to offspring

Question 2

Where is DNA in the cell

Answer 2

the nucleus

Question 3

what is the structure of DNA?

Answer 3

twisted ladder, called a double helix

Question 4

describe the relationship between chromosomes, genes and DNA

Answer 4

There are 46 chromosomes in a nucleus of a cell. Chromosomes contain DNA and genes are segments of DNA which code for specific proteins.

Question 5

what is a nucleolotide?

Answer 5

nucleotides make up DNA and RNA, they are made up of deoxyribose sugar, phosphate and a nitrogenous base

Question 6

what are the 4 bases in DNA? what pairs with what?

Answer 6

adenine pairs with thymine, cytosine pairs with guanine

Question 7

what holds together the bases in DNA?

Answer 7

hydrogen bonds

Question 8

what is RNA?

Answer 8

Ribonucleic acid, codes and decodes genetic information.

Question 9

describe how DNA and RNA are similar and how they differ

Answer 9

DNA: 2 strands, deoxyribose sugar, located in nucleus, A pairs with T, function is to pass genetic info from parent to offspring
RNA: 1 strand, ribose sugar, located in ribosome, A pairs with U, function is to code and decode genetic info