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Biology CH 15 Test Review Flashcards | StudBud
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Biology CH 15 Test Review
Biology CH 15 Test Review
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1
Why would the following procedure be performed?
to identify a parent (paternity testing)
to clone an animal
to treat a genetic disease (gene therapy)
to identify active genes
2
The process that led to a great diversity of coat colors in domestic horses is called
artificial selection
selective breeding
natural selection
random mutation
3
Has the disadvantage of possibly bringing together 2 recessive alleles to cause genetic defect.
transformation
genetic engineering
hybridization
inbreeding
4
Why is inserting plasmids into yeast DNA more complex than inseting them into bacteria?
yeasts are inbred
yeasts are prokaryotes
yeasts are eukaryotes
yeasts are hybrids
5
What has been an advantage of producing transgenic plants?
using more pesticides
increasing the food supply
studying human genes
producing clones
6
The use of DNA fingerprinting in forensics relies on the fact that
no 2 people, except identical twins, have the exact same DNA
most genes used for identification are dominant
DNA fingerprints from different people can look very similar
the most important genes are different among most people
7
Certain drugs can be used in plant breeding to make polyploid plants. These drugs
change the # of chromosomes found in cells
change eukaryotic plants into prokaryotic plants
cause mutations which create new alleles and genes
insert foreign DNA into plant chromosomes
8
Which type of chemical is used to cut DNA into pieces?
restriction enzyme
lysozyme
DNA ligase
DNA polymerase
9
Which process is represented by the following image?
gel elctrophoresis being used to sequence DNA
an enzyme being used to cut DNA
polymerase chain reaction being used to copy DNA
hybridization being used to manipulate DNA
10
Cloned animals resemble the originals because
half of the cloned animals DNA is the same as the originals
the new animals have the same genetic info as the originals
the new animals have mutations not found in the originals
genes of the new animals are different than the originals
11
Example:Breeding buffalo and cattle to create animals that have characteristics of both species
transcription
hybridization
transformation
genetic engineering
12
There is over a 99.9% chance that Male #1 is NOT the father of this child.
True
False
13
During transformation,
a prokaryote is changed into a eukaryote
a cell takes in DNA from outside the cell
the chromosome of a bacterium is mutated
foreign DNA is inserted into a plasmid
14
The DNA of a fly and the DNA of a gorilla are made up of subunits (nucleotides) that are
in different sequences in each of the 2 species
made of completely different kinds of nitrogenous bases
arranged in chains of the same length in both species
arranged in the same order in both species
15
What technique do scientists use to make transgenic organisms?
hybridization
inbreeding
inducing mutations
genetic engineering
16
Parents can use this process to determine if they are carrying recessive alleles for disease.
genetic testing
bacterial transformation
gene therapy
DNA fingerprinting
17
Example:Inserting a section of DNA into the DNA of a poisonous plant in an attempt to change it
direct harvesting
gene manipulation
cloning
reproduction
18
The source of a cloned animal's DNA is a single cell taken from an adult individiual.
False
True
19
The production of the proteins that provide a plant's colors and scents is the direct result of
presence of specific genes
inability of plants to move as animals do
behavior learned from parent plants
the genetic makeup of the surrounding vegetation
20
A DNA molecule produced by combining DNA from different source species is known as
a mutant
recombinant DNA
a polyploid
a hybrid
21
Selective breeding is a technique that is used to
produce organisms from extinct species
keep farm crops free of all mutations
give all organisms a chance to reproduce
produce offspring with certain desirable traits
22
The "Central Dogma" of Molecular Biology states that genetic info flows from
RNA to Protein to DNA
DNA to RNA to Protein
Protein to RNA to DNA
DNA to Protein to RNA
23
Which suspect has DNA base patterns for this gene that are identical to the crime scene DNA?
Suspect 3
Suspect 1
Suspect 2
Suspect 4
24
A gene that makes it possible to identify bacteria that have been transformed by a plasmid.
a resistance gene
an antibiotic
a clone
a genetic marker
25
Which protein creates DNA fragments with "sticky ends?"
DNA ligase
lysozyme
DNA polymerase
restriction enzyme
26
Viruses are used in gene therapy since they can transfer genes into human cells.
False
True
27
Transgenic organisms are made possible because the genetic code is universal.
False
True
28
Which of the following joins two pieces of DNA together?
genetic marker
plasmid
DNA ligase
restriction enzyme
29
GM crops that produce a higher yield per plant than unmodified crops would
produce less food and require more land
produce more food for the same acreage
produce more food but would use more land
produce less food for the same acreage
