Genetics, Evolution, & Heredity

Question 0

Explain dominant & recessive traits

Answer 0

Dominant traits will always be displayed

Sometimes genes will be carried for recessive traits

Ex. Brown eye dominant
Blue eye recessive

• Brown eye will show

Question 1

Where is the genetic code of organism stored?

Answer 1

Housed in the nucleus

DNA

deoxyribonucleic acid

Question 2

What is a great way to determine what kind of gene a child will receive

Where was the determined?

Answer 2

Punit square

Capitalized represents dominant
Lower case represents recessive

Gregory Mindell (scientist & monk) discovered by Breeding pea plants recessive traits can show eventually

Question 3

What does Darwin’s theory of evolution state?

What are variants?

Answer 3

Darwin’s theory of evolution asserts that organisms have changed over time to adapt to the unique and varied demands of their changing environments

• • organisms acquiring different traits from each parent **
• thus having a different set of traits

Ex. Giraffes have longer neck than parents based on DNA combinations

Question 4

What is some supporting evidence of Darwin’s theory of evolution?

Answer 4

1. fossil records
   * ** different organisms have changed over time
2. comparative anatomy
   * ** whales have feet from when they were on land
3. DNA sequences
   * ** hippos and whales have similar traits. Could have evolved from same organism

Question 5

What is natural selection?

Answer 5

It causes beneficial traits to be propagated and detrimental traits to be eliminated

Question 6

If a trait is advantageous or disadvantageous depends on the?

Answer 6

Environment

If the giraffe needs a long neck to reach high fruit, it will be advantageous

If it does not need the long neck, it could be cumbersome and disadvantageous