IE Imp Def

Question 1

Inheritance

Answer 1

Transmission of genitic characteristics from generation to generation

Question 2

Chromosome

Answer 2

Thread like structure of DNA carrying genetic information in the form of genes

(drawn as “X”)

Question 3

Gene:

Answer 3

a length of DNA that is the unit of heredity and
codes for a specific protein. A gene may be copied and passed on to the next generation

Question 4

Allele:

Answer 4

any of two or more alternative forms of a gene

Question 5

Haploid nucleus:

Answer 5

a nucleus containing a single set of
unpaired chromosomes (e.g. sperm and egg)

Question 6

Diploid nucleus

Answer 6

a nucleus containing two sets of
chromosomes (e.g. in body cells)

Question 7

Womans and mans chromososme

Answer 7

Woman:XX
Male:XY

Question 8

Chance of male and female

Answer 8

There is always a 50% chance of
getting a boy and 50% change of getting a girl

Question 9

What chromosomes can a male and female gamete carry

Answer 9

woman’s gamete can only carry an “X” chromosome, and a male gamete can carry either an “X” or “Y” chromosome;

Question 10

DNA:

Answer 10

control cell functions by controlling production of
proteins, antibodies and receptors for neurotransmitters

Question 11

What does DNA contain

Answer 11

2 long strands and 4 nucleotides, AT and CG