Download Genetics Quiz - Mrs. Hoovler`s Science Class

Genetics Quiz
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Question 1
The man considered the father of
modern genetics, who also determined
how genes are inherited is:
Charles Darwin
Louis Pasteur
Isaac Newton
Gregor Mendel
Question 1 Correct!
Gregor Mendel, an Augustinian
monk, is considered the father of
modern genetics. Mendel’s work with
pea plants resulted in a basic
understanding of how traits are
passed on from generation to
generation. Since the principles of
heredity are similar for all higher life
forms, Mendel’s work with pea plants
was relevant to many other species
as well.
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Question 2
In higher organisms the genetic
material, or DNA, is usually located
within what part of the cell?
Cytoplasm
Ribosome
Endoplasmic reticulum
Nucleus
Question 3
The basis of all hereditary material is
DNA. DNA is made from:
a nitrogen containing base
a phosphate molecule
a sugar molecule
all the above
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Question 3 Correct!
DNA consists of double helix or
twisted ladder formation held
together at the rungs by
nitrogen-containing bases. The
sides of the ladder consist of
sugars and phosphates. One
unit of a nitrogenous base,
sugar and phosphate is referred
to as a nucleotide.
Go to question 4
Question 2 Correct!
The hereditary material of a cell, DNA, is
located within the nucleus of the cell
unless the cell is undergoing cell division.
Simple life forms, such as bacteria, do not
have a specialized structure that contains
the DNA.
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Question 4
This type of gene completely expresses
its effect or outcome on an organism
regardless of the makeup of the other
gene within a gene pair.
recessive gene
dominant gene or allele
autosome
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Question 4 Correct!
A dominant gene or allele will express
itself regardless of what the other gene of
the pair may be. For example, if T is
completely dominant for tallness, then a
plant will be tall with each of the following
gene pairs: TT or Tt.
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Question 5
The physical traits or appearance of an
organism is determined by the genetic
material inherited from their parents. The
word used to describe one's inherited
appearance is:
Phenotype
Genotype
Homozygote
Heterozygote
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Question 5 Correct!
Phenotype is the traits and observable
physical appearance an organism
acquires as a result of the specific genes it
inherits. If T is completely dominant for
tallness, then we could say that a plant
with a T gene has a phenotype or
appearance of tall.
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Question 6
The combination of genes that an organism
inherits from its biological parents are
unique to each individual. The actual genes
an organism possesses is referred to as its:
Gene pool
Phenotype
Genotype
Genetic code
Question 6 Correct!
An organism's genotype is the set of genes
possessed in a gene pair or within the entire
organism. If a plant had inherited the genes T t
for height we would say that its genotype
consists of the genes "Tt." Genotype does not
take into account the appearance of an
organism.
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Question 7
For years humans have experimented with
the mating of different strains of plants and
animals to produce superior offspring. When
two genetically different strains of organisms
mate, the offspring that result are referred to
as:
Purebreds
Hybrids
Homozygotes
Mutants
Question 7 Correct!
When two genetically different
parents mate, the offspring that
result are called hybrids. The intent
of hybridization is to produce
offspring that contain the best
qualities of both parents, a condition
referred to as hybrid vigor.
Hybridization may result in benefits
such as higher yielding agricultural
products.
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Question 8
One of the most important characteristics of
DNA and genes is that they can be passed on
from generation to generation. The process
that allows DNA to copy itself so it can be
passed on to future generations is called:
Replication
Duplication
Deletion
Mutation
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Question 8 Correct!
The process of DNA replication
is what allows DNA to be
passed on from one generation
to the next. As a result, each of
your biological parents
contributed a roughly equal
amount of DNA to you.
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Question 9
Confusion often exists concerning the
difference between a gene and a
chromosome. A gene:
Is a segment of DNA that codes for a specific trait or protein
Is located on a chromosome
Occurs in pairs
All the above are correct
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Question 9 Correct!
A gene is segment of DNA or
a portion of a chromosome
that codes for a specific trait
or protein. Genes, which are
located on chromosomes,
occur in pairs with one gene
of the pair coming from each
biological parent. Numerous
genes are usually located on
one chromosome.
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Question 10
It is often beneficial for scientists to consider
the sum total of all of the genes that may
exist within a reproducing population at any
given moment. The aggregate of genes
present in a population is referred to as the:
Human genome
Gene pool
Genetic map
Gene flow
Question 10 Correct!
The gene pool consists of the total
collection of genes that exists within a
population at any given time. This would
include all the genes present within the
reproductive members of the population
from which sex cells could be derived.
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Genetics Quiz End
Thank you for taking
the genetics quiz,
hopefully you did well,
if not, then study up
because our unit test
is soon!
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