Free Printable Genetics Review

Worksheets

Genetics Review

Total questions: 29

Worksheet time: 44mins

Name

Class

Date

Of 12 hamsters just born, 9 have brown fur and 3 have white fur. The trait for white fur is considered to be ________.

recessive

weak

strong

dominant

When the genotype consists of a dominant and a recessive allele, the phenotype will be like the ______________ allele.

dominant

recessive

both

neither

Which of these would best be described as a phenotype?

blue eyes

mutation

A pea plant is heterozygous for height (Tt) and it is crossed with a homozygous short (tt) plant. Use a Punnett square to determine the probability of one of their offspring being short.

100%

75%%

50%

25%

One dog carries homozygous, long-haired traits (SS), and its mate carries homozygous short-haired traits (ss). Use a Punnett square to determine the probability of one of their offspring having long hair.

100%

75%

50%

25%

How many females are in this pedigree? Circles are females and squares are males.

How many males are there in this pedigree chart? Females are circles and males are squares.

Look at the Punnett square. If the two parents represented in the Punnett square have four offspring, what does the Punnett square tells you?

two of the offspring will definitely be heterozygous.

one of the offspring will definitely show the recessive trait.

there is a 50% chance for each of the 4 offspring to have the genotype Rr.

there is a greater chance for the offspring to be RR than rr.

Homozygous

Heterozygous

10.

Homozygous

Heterozygous

11.

Homozygous

Heterozygous

12.

Homozygous domiant

Homozygous recessive

Heterozygous dominant

Heterozygous

13.

Homozygous dominant

Homozygous recessive

Heterozygous dominant

Heterozygous recessive

14.

Which genotype is heterozygous?

15.

Which genotype is homozygous dominant?

16.

How many individuals are there in the 3rd generation?

17.

By looking at the chromosomes how can you tell that this person is biologically female?

Because there are two X chromosomes

Because there are more chromosomes than in a male

18.

By looking at the chromosomes is this individual biologically male or female? How do you know?

Female, because they have two X chromosomes

Male, because they have one X and one Y chromosome

19.

Produces four cells

Mitosis

Meiosis

Both

20.

produces identical daughter cells

Mitosis

Meiosis

Both

21.

produces two cells

Mitosis

Meiosis

Both

22.

Involves only one parent

Asexual Reproduction

Sexual Reproduction

Diverse

Uniform

23.

What is the cell process called that produces identical cells?

Mitosis

Meiosis

Photosynthesis

Cellular Respiration

24.

Which results in offspring that are genetically unique and display a combination of traits from each parent?

Sexual

Asexual

Neither

Both

25.

Which type of reproduction results in offspring that are identical to the parent?

Sexual

Asexual

Neither

Both

26.

If there were 100 chromosomes and the process of mitosis occurs, how many chromosomes will there be in one of the cells produced?

100

27.

If there were 100 chromosomes and the process of meiosis occurs, how many chromosomes will there be in one of the cells produced?

100

28.

Typically, turtles mate for life. If a female turtle mates with a male turtle, they will produced many babies. This is an example of what?

Asexual reproduction

Sexual reproduction

None of the above

I'm not sure

29.

A shark baby's DNA was found to be completely identical to a female shark. This means that what type of reproduction had to have happen?

Asexual reproduction

Sexual reproduction

None of the above

I'm not sure

Reset

Genetics Review

Total questions: 29

Worksheet time: 44mins

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