Genetics

Question 0

Mendel’s 3 basic principles?

Answer 0

Rule of dominance, Law of segregation, and Law of independent assortment.

Question 1

Father of genetics?

Answer 1

Gregor Mendel

Question 2

Rule of dominance?

Answer 2

One allele is dominant over the other

Question 3

Law of segregation?

Answer 3

When gametes are formed, 2 alleles separate ; one allele into one gamete and the other allele into a different gamete.

Question 4

Law of independent assortment?

Answer 4

The alleles for different traits are inherited separately or independently of each other.

Question 5

The study of heredity?

Answer 5

Genetics

Question 6

Transmission of traits from parent to offspring?

Answer 6

Heredity

Question 7

Characteristics that are inherited?

Answer 7

Traits

Question 8

Specific portions of DNA that determine your characteristics ; carry traits to be passed on from one generation to the next

Answer 8

Genes

Question 9

Alternative form of a gene

Answer 9

Allele

Question 10

True or False? An allele can be dominant or recessive?

Answer 10

True

Question 11

What is a dominant allele?

Answer 11

An observed trait ; will always show up ; will mask (or hide) the expression of the recessive allele.

Question 12

Dominant alleles are represented with a ______ letter.

Answer 12

Capitol

Question 13

What is a recessive allele?

Answer 13

Disappears ; seen only when no dominant allele is present.

Question 14

A recessive allele is represented with a ______ letter.

Answer 14

Lowercase

Question 15

An offspring has _ alleles for each trait.

Answer 15

2

Question 16

Gene combination of an organism ; written in symbols

Answer 16

Genotype

Question 17

Examples of a genotype..

Answer 17

yy, Tt, BB, etc

Question 18

Way am organism looks ; observable appearance.

Answer 18

Phenotype

Question 19

Examples of a phenotype…

Answer 19

Green, tall, hairy

Question 20

Homozygous?

Answer 20

Two alleles for a trait are identical (the same)

Question 21

Examples of homozygous traits…

Answer 21

TT, tt, YY, yy

Question 22

Heterozygous?

Answer 22

(Hybrid) two alleles for a trait are different

Question 23

Examples if a heterozygous trait…

Answer 23

Tt, Yy

Question 24

What is a Punnett square?

Answer 24

Grid used to determine the possible combinations of alleles that the parents may pass to an offspring.

Question 25

Monohybrid cross?

Answer 25

Genetic cross involving 1 trait

Question 26

Steps to solve a Genetic problem

Answer 26

1. Write the symbols for each trait.
2. Set up cross.
3. Set up Punnett square.
4. Genotype and ratio.
5. Phenotype and ratio.