Genetics

Question 1

The study of genes and heredity?

Answer 1

Genetics

Question 2

Who is known as the father of genetics?

Answer 2

Gregor Mendel

Question 3

What did Mendel study?

Answer 3

Pea Plants

Question 4

Offspring with same traits as parents?

Answer 4

Purebred

Question 5

Offspring with different traits than parents?

Answer 5

Hybrids

Question 6

Mendel’s 3 Principles?

Answer 6

1. Principle of Dominance and Recessiveness
2. Principle of Segregation
3. Principle of Independent Assortment

Question 7

Threadlike structure of DNA?

Answer 7

Chromosome

Question 8

A segment of DNA on a chromosome that controls a particular trait?

Answer 8

Gene

Question 9

What are different molecular forms of a gene?

Answer 9

Alleles

Question 10

What allele masks the expression of another allele?

Answer 10

Dominant Allele

Question 11

What allele is masked?

Answer 11

Recessive Allele

Question 12

How are Dominant Alleles written?

Answer 12

Capital Letters (A, B, C, etc.)

Question 13

How are Recessive Alleles written?

Answer 13

Lower Case Letters (a, b, c, etc.)

Question 14

Humans have how many chromosomes?

Answer 14

46

Question 15

What is it called when an organism has two identical alleles for a particular trait?

Answer 15

Homozygous

Question 16

What is it called when an organism has two different alleles for the same trait?

Answer 16

Heterozygous

Question 17

What do you call the physical characteristics that make up an organisms?

Answer 17

Phenotype

Question 18

What do you call the genetic makeup of an organism?

Answer 18

The Genotype

Question 19

What is the genotype AA an example of?

Answer 19

Homozygous Dominant

Question 20

What is the Genotype aa an example of?

Answer 20

Homozygous Recessive

Question 21

What is the genotype Aa an example of?

Answer 21

Heterozygous

Question 22

What is a tool used for working genetic crosses?

Answer 22

Punnet Square

Question 23

What is a cross between individuals involving only one trait?

Answer 23

Monohybrid Cross

Question 24

What is it when one allele is not completely dominant over another, and the heterozygous phenotype is a blending of the two homozygous phenotypes?

Answer 24

Incomplete Dominance

Question 25

What is it when both alleles contribute to the phenotype of the organism?

Answer 25

Codominance

Question 26

What is a type of inheritance where there are more than two alleles for a gene?

Answer 26

Multiple Alleles

Question 27

What are traits controlled by two or more genes?

Answer 27

Polygenic Traits

Question 28

Human example of Multiple Alleles and Codominance?

Answer 28

Human Blood Type

Question 29

What is a picture of chromosomes arranged in pairs?

Answer 29

Karyotype

Question 30

What chromosomes determines an individual’s sex?

Answer 30

Sex Chromosomes

Question 31

What are the sex chromosomes?

Answer 31

X and Y

Question 32

What is the genotype of a male?

Answer 32

XY

Question 33

What is the genotype of a female?

Answer 33

XX

Question 34

What is the name for chromosomes that are not sex chromosomes?

Answer 34

Autosomes

Question 35

What is a chart that shows how traits are transmitted through generations of a family?

Answer 35

Pedigree

Question 36

What are genes located on the sex chromosomes (X and Y)?

Answer 36

Sex-linked Genes

Question 37

X-linked genes are on the __ chromosome.

Answer 37

X

Question 38

Y-linked genes are on the __ chromosome.

Answer 38

Y

Question 39

Males pass their __ on to their daughters.

Answer 39

X

Question 40

What are examples of X-linked genetic disorders?

Answer 40

• Colorblindness
• Hemophilia
• Duchenne Muscular Dystophy

Question 41

The passage of traits from parent to offspring?

Answer 41

Heredity