Unit 1.3 Test Review and Corrections

Multiple Choice

Why is genetic variation important in sexual reproduction?

• It increases the chance of survival during outbreaks

• It decreases the chance of mutations

• It makes all offspring identical

• It requires only one parent

Multiple Select

Which of the following are examples of natural selection?

• Bugs camouflaging into their environment

• Breeding chickens to lay more eggs

• Animals growing thicker fur in winter

• Birds beaks adapting to available food sources

Multiple Choice

Artificial selection is when _____________ choose desirable traits in organisms.

• humans
• organisms

• dogs

• animals

Test Retake- Most Missed Questions

Use your prior knowledge and the review you just completed to answer the most missed questions from Unit 1.3 CUA

Drag and Drop

In sexual reproduction, a new organism is produced from ​

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parent(s) and results in offspring that are genetically ​

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to the parent(s).



An advantage of sexual reproduction is that there is more chance for genetic ​

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and a disadvantage is that there is more chance for ​

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.

Drag these tiles and drop them in the correct blank above

two

different

variation

mutation

one

identical

Multiple Choice

Humans have selectively bred animals for many years. Selective breeding helps to produce favored traits in

the animals. One example of animals that are selectively bred is chickens. Which of the following traits is most

likely achieved in chickens through selective breeding?

• producing offspring that have longer legs

• producing offspring with no feathers

• producing larger eggs

• producing less eggs

Multiple Choice

Looking at the table which plant can you conclude reproduces through sexual reproduction and why?

• Plant B because they are uniform.

• Plant A because there is genetic variation in the form of colors

• Plant A because they are genetically identical

• Plant B because it comes in only 1 color

Categorize

Options (10)

2 parents

Reproduction takes more time and energy

High genetic variation

Small amount of offspring produced

Populations can adapt to change

1 parent

Reproduction takes less time and energy

No genetic variation

Large amount of offspring produced

populations can not adapt to change

Categorize the characteristics into the correct type of reproduction.

Sexual Reproduction

Asexual Reproduction

Multiple Choice

Look at the cats in the image.

Why does the kitten look to be different from its parents?

• The kitten gets a mix of traits from both parents.

• The kitten has a disease that makes it look that way

• The kitten had poor nutrition during development

• The kitten is not fully grown and will look identical when it becomes an adult

Multiple Choice

Which statement describes an advantage of sexual reproduction when compared to asexual reproduction?

• Sexual reproduction requires less time and energy because a mate is not needed for reproduction.

• Sexual reproduction introduces different DNA, which result in greater diversity within the

  population.

• Sexual reproduction produces genetically identical offspring, which are less likely to have genetic

  mutations.

• Sexual reproduction produces offspring that are almost always adapted to their environment.