Participation Pop Quizzes (Topic 8-11)

Question 1

how many chromosomes are in a haploid cell?

Answer 1

23 Chromosomes

Question 2

How many chromosomes are in a diploid cell?

Answer 2

46 Chromosomes

Question 3

What is the order of M phase?

Answer 3

Prophase, Prometaphase, Metaphase, Anaphase, Telophase

Question 4

What increases genetic diversity of organism during meiosis?

Answer 4

Genetic recombination (crossing over)

Question 5

During what phase of the cell cycle is DNA replicated?

Answer 5

S phase

Question 6

In what phase does cell division occur?

Answer 6

M phase

Question 7

Prokaryotes, like bacteria, divide by what methods?

Answer 7

Binary Fission

Question 8

Mitosis and Meiosis, what is the main difference?

Answer 8

The DNA will split in half in meiosis (diploid into haploid), mitosis will have the full set of chromosomes from the mother and the father (stays diploid)

Question 9

What is the order of M phase?

Answer 9

Prophase (longest), Prometaphase (still part of Prophase), Metaphase (shortest), Anaphase, Telophase

Question 10

What 2 process increase genetic diversity in Meiosis?

Answer 10

Crossing over and random assortment

Question 11

When does crossing over occur during meiosis?

Answer 11

Prophase 1

Question 12

Does Meiosis occur in all types of cells?

Answer 12

No, only occurs in gamete cells

Question 13

Mitosis results in what type of daughter cells?

Answer 13

2 genetically identical diploid daughter cells

Question 14

Meiosis results in what type of cells?

Answer 14

4 unique haploid daughter cells

Question 15

What is evolution measuring exactly?

Answer 15

changes in alleles

Question 16

what agent of evolution is the ultimate source of new alleles?

Answer 16

mutations

Question 17

what allows organisms to match the changes happening to their environment?

Answer 17

evolutionary adaptations

Question 18

What are homologous structures?

Answer 18

similar physical features in an organism that share a common ancestor, but the features serve completely different functions

Question 19

What are analogous structures?

Answer 19

are structures that are similar in function but different in evolutionary origin, such as the wing of a bat and the wing of a butterfly

Question 20

For natural selection to occur in a population what must exist in that population?

Answer 20

reproductive success of different phenotypes must differ

variation must exist in a population

variation must be inherited from one generation to the next generation

Question 21

Founder effects and bottlenecks are examples of what?

Answer 21

forms of genetic drift

Question 22

If there is no diversity in a population, the population is at risk of what?

Answer 22

bottleneck event extinction

Question 23

how is fitness measured in a population

Answer 23

the comparison of the number of surviving offspring in the next generation

Question 24

The biological concept of species is defined as?

Answer 24

populations who’s members are able to produce fertile offspring

Question 25

what are pre-zygotic reproductive barriers?

Answer 25

Isolation mechanisms preventing different species from mating

Question 26

What are some examples of pre-zygotic reproductive barriers?

Answer 26

Ecological Isolation, Behavior Isolation, Temporal Isolation, Mechanical Isolation, Prevention of Gamete Fusion

Question 27

What are post-zygotic reproductive barriers?

Answer 27

Isolation mechanisms preventing the species hybrid offspring from being reproductively successful

Question 28

What are some examples of post-zygotic reproductive barriers?

Answer 28

Hybrid Inviability, Hybrid Infertility, Hybrid Breakdown