Exam 2

Question 1

Person who was convinced of evolution but not natural selection, saw no better theory. Wrote “Evidence as to Man’s Place in Nature”

Answer 1

Thomas Henry Huxley

Question 2

When was “Evidence as to Man’s Place in Nature” written?

Answer 2

1863

Question 3

Person who made the biological species concept

Answer 3

Ernst Mayr

Question 4

Individuals that can reproduce and produce fertile offspring are the same species

Answer 4

Biological species concept

Question 5

People who discovered DNA (3)

Answer 5

James Watson, Francis Crick, Rosalind Franklin

Question 6

When did modern genetics begin?

Answer 6

1953

Question 7

Genetic change in a population over time; A change in gene frequencies in a population over time

Answer 7

Evolution

Question 8

Thought that fully formed humans were in every sperm and deposited into the uterus and fully formed before it was born

Answer 8

Humunculus

Question 9

Each parent contributed equally, but they blended together like two buckets of paint; discredited the 19th century idea of hereditary

Answer 9

Blending inheritance

Question 10

What will wipe out in blending inheritance?

Answer 10

Variability

Question 11

Darwin’s explanation of inheritance; humans shed body cells called gemmules which collect in the reproductive organs prior to fertilization

Answer 11

Pangenesis

Question 12

Person who experimented with pea plants, offspring in F1 generation all showed one trait, trait that was not shown in F1 showed up in F2 25% of the time, discovered genes

Answer 12

Mendel

Question 13

Unit of inheritance which occurs at a specific place on a chromosome that provides information for a specific trait

Answer 13

Gene

Question 14

What is an example of a gene?

Answer 14

One gene for eye color

Question 15

Alternate forms of a particular gene at a specific locus

Answer 15

Allele

Question 16

For every trait, how many alleles do we have?

Answer 16

2

Question 17

What is an example of an allele?

Answer 17

Gene for eye color that has two alleles, one allele for brown eyes and another for blue eyes

Question 18

Trait expressed in the F1 generation or the allele that prevents expression of the recessive trait; covers over the recessive gene

Answer 18

Dominant

Question 19

The train unexpressed in the F1 generation but re-expressed in some members of the F2 generation of the unexpressed allele in the heterozygote

Answer 19

Recessive

Question 20

Have identical alles for a givene gene

Answer 20

Homozygote