Chapter 1

Question 1

All cells store their genetic information in …

Answer 1

the base sequence of DNA.

Question 2

The genotype is determine by….

Answer 2

the sequence of bases

Question 3

Nucleotides contain…

Answer 3

deoxyribose sugar, phosphate and base

Question 4

Describe the structure of DNA

Answer 4

DNA is made up of nucleotides, sugar–phosphate backbone, base pairing by hydrogen bonds and double stranded antiparallel structure, with deoxyribose and phosphate at 3’ and 5’ ends of each strand respectively, forming a double helix.

Question 5

in DNA, the Adenine base matches with

Answer 5

Thiamine

Question 6

In DNA, the Cytosine base matches with

Answer 6

Guanine

Question 7

In prokaryotes the DNA is found in

Answer 7

circular chromosomal DNA and plasmids

Question 8

In human cells, DNA is found in

Answer 8

Linear chromosomes in the nucleus and circular chromosomes in the mitochondria

Question 9

In a palisade mesophyll plant cell, DNA is found in

Answer 9

Linear chromosomes in the nucleus and circular chromosomes in mitochondria and in chloroplasts

Question 10

DNA in the linear chromosomes in the nucleus of eukaryotes is tightly coiled and packaged with

Answer 10

associated proteins