14065

Question 1

The endosymbiont theory supports abiogenesis.

Answer 1

False

Question 2

Mark all the following genetic disorders that result in an outwardly normal phenotype.

Answer 2

Physical Appearance

Question 3

Bacteria pick up genes accidentally from viruses that they are infected with by _____.

Answer 3

Transduction

Question 4

Lactose can induce the lac operon to make enzymes to digest lactose.

Answer 4

True

Question 5

Two different species can never interbreed and produce fertile offspring.

Answer 5

False

Question 6

Heliconius butterflies and Passion vines exhibit _____.

Answer 6

Leoevolution

Question 7

The most common cause of background extinction is disease.

Answer 7

False

Question 8

All of the following in your diet that would help prevent cancer

Answer 8

-Cruciferous Vegetables
-Lycopenes
-Anthocyanins

Question 9

Uncontrolled cell division which normally leads to a tumor is called?

Answer 9

Hyperplasia

Question 10

Down syndrome is caused by?

Answer 10

Trisomy

Question 11

How many autosomes do humans have in their cells normally?

Answer 11

44

Question 12

Common mutagens and can work as initiators in cancer.

Answer 12

• Benzopyrenes
• Nitrosamines

Question 13

Bacteriophages are bacteria that attack viruses.

Answer 13

False

Question 14

Achondroplasia is a recessive genetic disease.

Answer 14

False

Question 15

How many chromosomes are found in most human cells?

Answer 15

46

Question 16

The _____ works as a red/green light. It can be blocked by the repressor protein.

Answer 16

Operator Gene

Question 17

DNA has a positive charge so in gel electrophoresis it would be attracted to the negative pole.

Answer 17

False

Question 18

Natural selection occurs in individuals.

Answer 18

True

Question 19

Founder effect is always negative in a population.

Answer 19

False

Question 20

Mark all of the following that develop from ectoderm.

Answer 20

Hair and Nails
The Nervous System

Question 21

Pluripotent stem cells have the ability to become all types of cells.

Answer 21

False

Question 22

Insect wings and bird wings are an example of _____.

Answer 22

Analogous

Question 23

Mules are normally sterile due to an odd number of chromosomes.

Answer 23

True

Question 24

Evolution happens in individuals.

Answer 24

False

Question 25

In gel electrophoresis, the smaller DNA fragments move faster through the gel than the heavier fragments, thus creating different bands.

Answer 25

True

Question 26

In general, aneuploidy is more severe when they involve sex chromosomes rather than autosomes

Answer 26

False

Question 27

Is a solid ball of cells, and it occurs at about day 3 in humans.

Answer 27

Morula

Question 28

Birds are more closely related to some of the dinosaurs than some of the dinosaurs are to each other.

Answer 28

True

Question 29

Is a fertilized egg.

Answer 29

Zygote

Question 30

What embryonic stage is used in the chimera studies we discussed in class?

Answer 30

Blastocyst

Question 31

Sickle cell anemia is an example of a _______ mutation.

Answer 31

Missense Mutation

Question 32

Some human diseases, like hemophilia, have been successfully treated with gene therapy.

Answer 32

True

Question 33

How many defective genes do you have to inherit to get a recessive genetic disease?

Answer 33

2

Question 34

Shark and Dolphins exhibit

Answer 34

Convergent evolution

Question 35

___ Can prevent cancer

Answer 35

Antipromoters

Question 36

Artic foxes and desert foxes’ exhibit

Answer 36

Divergent evolution

Question 37

Mark all of the following that develop from mesoderm

Answer 37

The skeletal system
The cardiovascular or Circulatory system

Question 38

What kind of gene codes for the repressor protein

Answer 38

Regulatory Gene

Question 39

The ___ normally codes for enzymes/proteins that are important in anabolism or catabolism

Answer 39

Structural Genes

Question 40

Polyploidy in plants is usually fine but polyploidy in animals usually results in death

Answer 40

True

Question 41

Mark all of the following that are common mutagens & can work initiators in cancer

Answer 41

Benzopyrenes
Nitrosamines

Question 42

The Iac operon is normally blocked by a repressor protein

Answer 42

True

Question 43

Dietary fat can work as a promoter, causing cancer cells to grow faster

Answer 43

True

Question 44

Aposematic coloring is camouflage where organisms can hide effectively in their environment

Answer 44

False