Natural Selection & Genetics + Theory of Evolution by Natural Selection

What percent shows the recessive trait?

what's an inherited trait

My favorite subject is….

two of the same allele's

Which is homozygous recessive?

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

What is a dominant allele?

Homozygous dominant could be referred to by?

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

Organisms with different structures and similar functions share ____ structures.

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

Which is homozygous?

What is a genetic mutation

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

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

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

a segment of DNA on a chromozome

Anything that can hinder the size of a population.

Which genotype represents a recessive trait?

Heterozygous

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

What are the Two Forms of an Allele?

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

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

Mutations in genes cause____.

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

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

Charles Darwin did most of his research in____________________.

What percentage of these offspring will be homozygous dominant?

What percentage of offspring will show the recessive trait?

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

Gregor Mendel is the...

Which is a learned behavior?

What is an allele?

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

Define a trait

In humans, an allele might indicate?

acquired trait

What is natural selection?

What process causes populations to change as their environment changes?

Studying relationships between organisms by comparing their genes and proteins is

TRAIT: turtle has a hard shell.

Gregor Mendel worked with...

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

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

TRAIT: A snake sheds its skin.

Driving is NOT an acquired trait.

What determines how closely related two species are?

This part of the cell contains chromozomes

Charles Darwin was what type of scientist?

What did Charles Darwin study?

Punnett Squares are used

How did Darwin study plants and animals?

dominant trait

Natural selection increases the frequency of:

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

What is a recessive allele?

Studying relationships between organisms by comparing their embryos is___.

Gender/ sex is decided by sex chromozomes

Studying relationships between organisms by comparing their structures is ____

What is the brain of the cell?

Who was Gregor Mendel?

The breeding of organims for desired traits is called___.

Good manners are an inherited trait?

Homozygous recessive should be represented as?

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

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

On the Galapagos Islands, Charles Darwin observed . . .

Which is homozygous dominant?

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