SCIENCE TEST 4-22-24

Question 1

define Heredity

Answer 1

the passing of physical traits from parent to offspring

Question 2

Define Trait

Answer 2

a characteristic

Question 3

Genetics

Answer 3

the scientific study of heredity

Question 4

Purebred

Answer 4

offspring of many generations that have the same trait

Question 5

Fertilization

Answer 5

when a new organism begins to form when egg and sperm join

Question 6

Alleles

Answer 6

different forms of a gene
Ex. eye color

Question 7

Gene

Answer 7

factors that control a trait
Example- eye color

Question 8

Dominant allele

Answer 8

the allele that always shows up if it is present

Question 9

Recessive allele

Answer 9

hidden whenever a dominant allele is present

Question 10

Hybrid

Answer 10

when a organism has two different alleles

Question 11

Genotype

Answer 11

genetic makeup

Question 12

Phenotype

Answer 12

physical appearance

Question 13

Can you explain the anatomy of a flower?
Pistil
Stamen
Anther

Answer 13

Pistil: Female organ of a flower
Stamen: male organ of a flower
Anther: contains pollen

Question 14

Explain Gregor Mendel’s pea plant experiment.

Answer 14

P generation- The two parents they are purebreds
F1 generation- Only the dominant alleles showed up
F2 generation- 75% were Dominant and 25% were recessive

Question 15

What does an uppercase symbol mean? Lowercase?

Answer 15

Uppercase: Dominat Allele
Lowercase- recessive allele

Question 16

What was significant about Mendel’s contributions?

Answer 16

He was the Father of genetics
No blending of traits

Question 17

What is a factor that controls a trait?

Answer 17

A gene