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WorksheetsBio 12 - Begin Semester 2
Total questions: 20
Worksheet time: 7mins
Name
Class
Date
1.
Which of the following is a heterozygous trait?
a)
GG
b)
gg
c)
Gg
2.
An organism's physical appearance or visible traits
a)
fertilization
b)
genotype
c)
phenotype
d)
homozygous
3.
An organism's genetic makeup, or allele combination
a)
fertilization
b)
genotype
c)
phenotype
d)
heterozygous
4.
The complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes.
a)
genome
b)
epigenome
c)
genetic markers
d)
RNA codon
5.
A mutation is defined as:
a)
A change in the cell's structure
b)
Anything that changes in an embryo
c)
Any change in the physical features of a human
d)
A change in the DNA sequence
6.
Mutations are SOMETIMES helpful to the organism.
a)
true
b)
false
7.
The gene mutation for sickle cell causes the shape of red blood cells to change into a sickle shape. This causes haemoglobin to;
a)
transport more oxygen to cells
b)
transport less oxygen to cells
c)
transport more carbon dioxide
d)
transport less carbon dioxide
8.
When lions prey on a herd of antelopes, some antelopes are killed and some escape. Which part of Darwin’s concept of natural selection might be used to describe this situation?
a)
reproductive isolation
b)
descent with modification
c)
acquired characteristics
d)
survival of the fittest
9.
According to Darwin’s theory of natural selection, the individuals that tend to survive are those that have
a)
characteristics their parents acquired by use and disuse.
b)
the greatest number of offspring.
c)
characteristics that plant and animal breeders value.
d)
variations best suited to the environment.
10.
Individuals that are well adapted to their environment will survive and produce:
a)
Fewer mutations
b)
Stronger genes
c)
More offspring
d)
Better traits
11.
What does sexual reproduction allow for?
a)
Increased genetic diversity
b)
Increased offspring
c)
Decreased genetic diversity
d)
Decreased rate of evolution
12.
According to the theory of natural selection, some individuals more likely than others to survive and reproduce because they:
a)
pass on to their offspring their newly acquired traits.
b)
are better adapted to their environment than others and will pass on those adaptations to future offspring.
c)
do not pass on newly acquired traits.
d)
produce fewer offspring than others in the same environment.
13.
What does the picture represent?
a)
Founder Effect
b)
Mutations
c)
Bottleneck effect
d)
Gene Flow
14.
Which human activity would be most destructive to the biodiversity of the biosphere?
a)
a. The burning of wood and coal in rural areas
b)
b. The release of species of freshwater trout in lakes
c)
c. The removal of plants from the food webs they support
d)
d. The removal of erosion barriers from forest boundaries
15.
Which of the following describes the importance of biodiversity to an ecosystem?
a)
a. People like to be able to see all the different plants and animals
b)
b. If there aren�t all the different species, there will be resources that aren�t being used
c)
c. Biodiversity is not as important as many people think
d)
d. Biodiversity can help minimize the effects of losing a species.
16.
Which of the following is used to cut DNA so it can be studied?
a)
Gel Electrophoresis
b)
Restriction Enzymes
c)
Karyotypes
d)
Haplotypes
17.
The human genome project is an attempt to
a)
Sequence everyones DNA
b)
Copy DNA
c)
Sequence the human genome
d)
Cure genetic disease
18.
The insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder.
a)
Karyotype
b)
Gene Therapy
c)
Mutation
d)
Multiple Alleles
19.
A pair of chromosomes carrying genes that determine whether a person is male or female...
a)
Sex-Linked Genes
b)
Sex Chromosomes
c)
Pairsies
d)
Pedigree
20.
Which of the following would be an example of gene therapy technology?
a)
development of a nasal spray that contains copies of the normal gene that is defective in person with cystic fibrosis
b)
cutting DNA into fragments with restriction enzymes
c)
modifying E. coli to produce indigo dye for coloring denim blue jeans
d)
separation DNA fragments using gel electrophoresis
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