LESSON 1: G1 - Heredity

Question 1

What is essential to all life?

Answer 1

Cell divsion and reproduction

Question 2

Cell divsion passes…

Answer 2

chromosomes fron parent to daughter

Question 3

Chromosomes

Answer 3

They carry informaton for traits

Question 4

How many pairs of chromosomes

Answer 4

23

Question 5

How many chromosomes total

Answer 5

46

Question 6

deoxyribonucleic acid

Answer 6

a molecule
that carries genetic information in cells

Question 7

gene

Answer 7

a segment of a DNA molecule that
codes for a particular trait; found at a
specific location on a chromosome

Question 8

locus

Answer 8

the location of a gene on a
chromosome

Question 9

polyploid

Answer 9

having more than two sets of
chromosomes; many plants are polyploids

Question 10

Genetic material

Answer 10

Used to describe all material n an organism that stores gentic info

Question 11

Do chromosomes carry many different genes?

Answer 11

They carry many different genes

Question 12

Genome size

Answer 12

total amount of DNA contained within haploid genome

Question 13

The 4 smaller molecules DNA is made up of is called the…

Answer 13

Nucleotides

Question 14

1 set=

Answer 14

haploid cell

Question 15

2 set=

Answer 15

diploid cell

Question 16

3 or more sets=

Answer 16

polyploid cell

Question 17

Asexual reproduction

Answer 17

• Via cell division
  -Off spring gentically idnetical to parent
  -Only one parent

Pros: No seeking of mate

cons: No gentic variety

Question 18

Sexual reproduction

Answer 18

• Produced from fusion of 2 sex cells
• Two parents
  -gentically unique

Pros: can adapt to changing enviroments

cons: Loss of resources and combo of info can make offspring weak