Natural Selection & Genetics + Theory of Evolution by Natural Selection

Which theory supports the fossil evidence that horses once had 3 toes on each foot as opposed to having hooves?

Think about what we've learned in genetics. Is this trait dominant or recessive?

Homozygous dominant could be referred to by?

If the foxes environment changes to have only brown dirt, which of the following fox populations will most survive.

What did Charles Darwin study?

According to the fossil record, scientists believe that most animals that have ever lived are now _________.

The breeding of organims for desired traits is called___.

What will happen to the moth population over time if a new bird in the area eats them?

Organisms with different structures and similar functions share ____ structures.

Charles Darwin did most of his research in____________________.

Which is homozygous recessive?

Scientists believe that life on Earth began over 3.5 billions years ago based on the ________.

What percent shows the recessive trait?

You are mating a homozygous dominant with a homozygous recessive. Choose the correct offspring

Gregor Mendel worked with...

What is natural selection?

What is a dominant allele?

Evolution causes ___________ to become more common in a population over time

What is an allele?

Gender/ sex is decided by sex chromozomes

Which is homozygous dominant?

What is a genetic mutation

A structural adaptation in which an organism resembles another is ____.

What percentage of offspring will show the recessive trait?

In order for a species to survive climate change it has to _______.

Studying relationships between organisms by comparing their genes and proteins is

dominant trait

Seals with thicker blubber are more likely to stay warm in the cold but overheat. If their environment changes to warm

two of the same allele's

Similar structures with different functions found in organisms are called ___ structures.

Anything that can hinder the size of a population.

A type of structural adaptation that allows an organism to blend with its surroundings is ___

Which is homozygous?

acquired trait

Who was Gregor Mendel?

To change the frequencies of alleles in a population over time.

What percentage of these offspring will be homozygous dominant?

Punnett Squares are used

Spines, poisonous toxins, camoflage are all _____ that help survival.

what's an inherited trait

Homozygous recessive should be represented as?

The name of the ship that Darwin sailed to South America was ___.

In humans, an allele might indicate?

Heterozygous

Driving is NOT an acquired trait.

On the Galapagos Islands, Charles Darwin observed . . .

Studying relationships between organisms by comparing their embryos is___.

How did Darwin study plants and animals?

This part of the cell contains chromozomes

Charles Darwin was what type of scientist?

Which genotype represents a recessive trait?

Think about what we've learned in genetics. Is this trait dominant or recessive?

My favorite subject is….

TRAIT: A snake sheds its skin.

What process causes populations to change as their environment changes?

Mutations in genes cause____.

A jack rabbit's powerful legs are an example of a ____.

What is the brain of the cell?

Gregor Mendel is the...

What are the Two Forms of an Allele?

What is a recessive allele?

Spine sizes of a population of cactuses in an area was measured in 1970 & 2015. Choose the best description difference.

Define a trait

a segment of DNA on a chromozome

TRAIT: turtle has a hard shell.

Studying relationships between organisms by comparing their structures is ____

Natural selection increases the frequency of:

Good manners are an inherited trait?

Which is a learned behavior?

What determines how closely related two species are?