Chapter 16,17,18 and 19-2021

Question 1

Gram strain is usually determined by the chemical structure of the bacteria cell wall.

Accepted Answer

True

Question 2

Cyclic AMP (cAMP) is the second messenger in eukaryotic cells. It is also a regulator of some bacterial operons.

Accepted Answer

True

Question 3

Phylogenies are?

Accepted Answer

inference of the evolutionary history and relationships among

Question 4

Both Bacteria and Archaea are

Accepted Answer

Prokaryotic

Question 5

What is Phylogeny?

Accepted Answer

History of descent of organisms from a common ancestor

Question 6

Which of the following is NOT a common bacterial morphologies

Accepted Answer

Anacocci

Question 7

The morphological species concept distinguishes species based on what?

Accepted Answer

Physical similarities

Question 8

Homologies are similar traits that have been taught from a common ancestor.

Accepted Answer

False

Question 9

What is taxonomy?

Accepted Answer

The clasiyfing of biological organisms.

Question 10

Enzyme that unwinds the DNA

Accepted Answer

Helicase

Question 11

Strings of Ribosome

Accepted Answer

Polyribosomes

Question 12

What is An enzyme that joins RNA nucleotides to make the primer?

Accepted Answer

primase

Question 13

Which of the following is a protein produced by a regulatory gene?

Accepted Answer

repressor

Question 14

What is transcription?

Accepted Answer

The synthesis of RNA using a DNA template.

Question 15

Exotoxins are not soluble proteins released by living, multiplying bacteria.

Accepted Answer

False

Question 16

What is the function of reverse transcriptase in retroviruses?

Accepted Answer

It uses viral RNA as a template for DNA synthesis.

Question 17

What is A set of three-nucleotide-long words that specific the amino acids for polypeptide chains?

Accepted Answer

Triplet Code

Question 18

The arm of a human is an example of homologie...

Accepted Answer

True

Question 19

Thinner ocean plates are forced under thicker continental plates due to?

Accepted Answer

subduction

Question 20

Plate tectonics are the geophysics of the movement of major land masses.

Accepted Answer

True

Question 21

A mutation occurring when the number of nucleotides inserted or deleted is not a multiple of 3

Accepted Answer

Frameshift mutation

Question 22

In binomial nomenclature the first word is _ and the second is _?

Accepted Answer

genus, species of genus

Question 23

Thinner ocean plates are forced under thicker continental plates due to?

Accepted Answer

subduction

Question 24

Alternative RNA splicing

Accepted Answer

allows the production of proteins from a single mRNA.

Question 25

The biological species concept distinguishes species based on what?

Accepted Answer

Reproductive Isolation

Question 26

Unwinds and separates parent strands.

Accepted Answer

Helicase

Question 27

Mechanisms that prevent hybridization from occurring are…

Accepted Answer

Prezygotic isolating

Question 28

What is the cause of the continental drift?

Accepted Answer

currents in the magma, move the plates and the continents that lie on top

Question 29

In binomial nomenclature the first word is _ and the second is _

Accepted Answer

genus, species of genus

Question 30

What is telemorase?

Accepted Answer

An enzyme that catalyzes the lengthening of telomeres in eukaryotic.

Question 31

Fossils are found in ______ rock?

Accepted Answer

Sedimentary

Question 32

Introns are a non-coding intervening sequence within a eukaryotic gene

Accepted Answer

True

Question 33

Their are a total of _ mass extinctions?

Accepted Answer

5

Question 34

mRNA base triplets are called

Accepted Answer

Codons

Question 35

Phylogenies are?

Accepted Answer

the evolutionary history and relationships within groups of organisms

Question 36

A lack of which molecule would result in the cell's inability to "turn off" genes?

Accepted Answer

corepressor

Question 37

Sites where the replication of a DNA molecule begins?

Accepted Answer

origin of replication

Question 38

Translation occurs at the Ribosome

Accepted Answer

True

Question 39

Definition of a Clade

Accepted Answer

Picking any point on a phylogenetic tree and trace all descendent lineages

Question 40

What does a promoter do?

Accepted Answer

it allows a gene to be transcribed

Question 41

A lineage is when species concept emphasizes the practical aspects of recognizing species

Accepted Answer

False

Question 42

Homologies are

Accepted Answer

Similar traits

Question 43

Which of the following is not a normal feature of prokaryotic mRNA?

Accepted Answer

poly-A tail

Question 44

Carolus Linnaeus created…

Accepted Answer

Binomial Nomenclature

Question 45

What is Allopatric speciation?

Accepted Answer

geographic relationship new species ancestral species ie different species

Question 46

Two species that are each other's closest relatives are called sister species.

Accepted Answer

True

Question 47

What is a mutation with a phenotype leading to death of an embryo or larva?

Accepted Answer

Embryonic Lethal

Question 48

How many small meteorites hit the earth each year?

Accepted Answer

30

Question 49

Gram strain is usually determined by the chemical structure of the bacteria cell wall.

Accepted Answer

True

Question 50

Hershey and Chase Worked with fruit flies - showed that genes were on chromosomes.

Accepted Answer

False

Question 51

Which of the following terms does not directly pertain to translation?

Accepted Answer

Polypeptide

Question 52

Which enzyme catalyzes the elongation of a DNA strand in the 5' → 3' direction?

Accepted Answer

DNA polymerase III

Question 53

Operator's are essentially The "switch" to turn on and off a gene.

Accepted Answer

True

Question 54

What is the model used to show Phylogeny called?

Accepted Answer

Phylogenetic tree

Question 55

Pattern formation is the arrangement of organs and tissues in their characteristic places in three-dimensional space.

Accepted Answer

True

Question 56

extremophiles live in comfortable conditions

Accepted Answer

False

Question 57

What is alternative RNA splicing?

Accepted Answer

allows a single gene to code for multiple proteins.

Question 58

Radiometric dating is a technique that does what?

Accepted Answer

Uses a variety of radioisotopes to date events in the past

Question 59

Speciation is the process by which one species splits into two or more what?

Accepted Answer

Daughter species

Question 60

What is taxonimy?

Accepted Answer

The clasiyfing of biological organisms.

Question 61

Taxonomy is concerned with the naming of organisms

Accepted Answer

True

Question 62

Identified that heat-killed deadly bacteria mixed with harmless live bacteria would become deadly.

Accepted Answer

Frederick Griffith

Question 63

How is the relative age of organisms determined?

Accepted Answer

Dating of fossils

Question 64

What is an enzyme that untwists the double helix of DNA at the replication forks?

Accepted Answer

helicase

Chapter 16,17,18 and 19-2021

Questions 71

Chapter 16,17,18 and 19-2021

Questions 71