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Ch. 10 Test- Mendelian Genetics

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.

The passing of traits from parent to offspring is called _______.

a)

punnett squares

b)

heredity

c)

alleles

d)

nondisjunction

2.

The type of cell reproduction that produces gametes.

a)

mitosis

b)

meiosis

c)

replication

d)

transcription

3.

Gametes are ___________.

a)

Reproductive cells

b)

Sperm Cells

c)

Egg Cells

d)

All of these

4.

An organism's physical appearance.

a)

genotype

b)

phenotype

c)

alleles

d)

gametes

5.

The union of an egg and sperm cell.

a)

replication

b)

genetics

c)

fertilization

d)

zygote

6.

BB and bb are both

a)

homozygous

b)

heterozygous

c)

dominant pairs

d)

recessive pairs

7.

Different forms of a gene are called ______.

a)

phenotypes

b)

genotypes

c)

alleles

d)

gametes

8.

The genotype Bb is ____________

a)

homozygous

b)

heterozygous

c)

purebred

9.

In this Punnett square, what are the odds of the offspring being heterozygous?

a)

0%

b)

25%

c)

50%

d)

100%

10.

In this Punnett square, what are the odds of the offspring being yellow?

a)

0%

b)

25%

c)

50%

d)

100%

11.

In a cross between two heterozygous parents, what percent of the offspring would you except to have the recessive trait?

a)

25%

b)

50%

c)

75%

d)

100%

12.

Our genes are located in our DNA/chromosomes.

a)

True

b)

False

13.

In the cross TT x tt (T = tall and t = short) What are the chances of the plants being short?

a)

100%

b)

50%

c)

25%

d)

0%

14.

If a banana species has 22 chromosomes. How many chromosomes would be found in its gametes?

a)

22

b)

11

c)

44

d)

It depends on the animal.

15.

The stages of Meiosis I in the correct order.

a)

Metaphase, Prophase, Anaphase, Telophase

b)

Telophase, Anaphase, Metaphase, Prophase

c)

Prophase, Metaphase, Anaphase, Telophase

d)

Anaphase, Prophase, Telophase, Metaphase

16.

The Father of Genetics.

a)

Darwin

b)

Watson

c)

Mendel

d)

Franklin

17.

Chromosomes line up in a single file row in the middle of a cell during which stage of meiosis?

a)

Metaphase 1

b)

Metaphase 2

c)

Telophase 2

d)

Prophase 2

18.

Another name for heterozygous:

a)

purebred

b)

homozygous

c)

hybrid

d)

alleles

19.

Another name for homozygous:

a)

heterozygous

b)

purebred

c)

hybrid

d)

gametes

20.

The process that occurs during Prophase 1 which increases genetic diversity in gametes.

a)

linked genes

b)

fertilization

c)

crossing-over

d)

polyploidy

21.

Linked genes are:

a)

Genes that have genetic mutations

b)

Genes that have too many alleles

c)

Genes that are often passed on together

d)

Genes that code for the same trait

22.

Capital letters are always used for ________ alleles.

a)

Recessive

b)

Dominant

23.

Two dominant OR two recessive alleles for the same trait would be considered ___________.

a)

heterozygous

b)

hybrid

c)

recessive

d)

homozygous

24.

When an allele can "hide" another trait, we say the hidden trait is:

a)

homozygous

b)

linked

c)

recessive

d)

weak

25.

The allele or gene combinations (letters) present is known as the _______.

a)

phenotype

b)

genotype

c)

monohybrid

d)

dihybrid

26.

RR is an example of:

a)

heterozygous recessive

b)

heterozygous dominant

c)

homozygous dominant

d)

homozygous recessive

27.

Tt is an example of:

a)

homozygous

b)

purebred

c)

phenotype

d)

genotype

28.

Tall is an example of an organism's:

a)

genotype

b)

phenotype

29.

In the punnett square picture, the parents:

a)

have the same genotype

b)

are both homozygous

c)

are both heterozygous

d)

have the same phenotype

30.

What percent of the offspring in this cross will have the recessive phenotype?

a)

100%

b)

25%

c)

50%

d)

0%

31.

Extra Credit: How is a dihybrid cross different then a monohybrid cross?

a)

They compare two traits at once.

b)

The dominant traits don't always "hide" recessive traits

c)

They don't follow the rules of basic genetics

d)

They can compare more than 2 traits at once.