BIO 100 Unit 6 Pre-Test _ 2020 – Troy
University
Which of the following is when DNA is replicated into two copies?
•
DNA polymerase
•
Semiconservative replication
•
Base-pair substitution
•
Gene mutation
CONCE
...
BIO 100 Unit 6 Pre-Test _ 2020 – Troy
University
Which of the following is when DNA is replicated into two copies?
•
DNA polymerase
•
Semiconservative replication
•
Base-pair substitution
•
Gene mutation
CONCEPT
DNA Replication
2
What is the name of a segment of DNA that codes a specific protein?
•
Gene
•
Autosome
•
RNA
•
Chromosome
CONCEPT
Structure of DNA and Chromosomes
3Gregor Mendel is important because his work with pea plants led to the
discovery that ___________.
•
offspring inherit traits from their parents
•
some traits cannot be passed on from parent to offspring
•
some chromosomes are autosomes and some are sex chromosomes
•
traits are passed on from parents to offspring through genes
CONCEPT
Heredity
4
Maxine has blue eyes, which is a recessive trait.
Which of the following statements about Maxine's parents must be true?
•
Both of Maxine's parents carry the allele for blue eyes.
•
Both of Maxine's parents must have blue eyes.
•
At least one of Maxine's parents must have blue eyes.
•
At least one of Maxine's parents must carry the trait for blue eyes.
CONCEPT
Punnett Squares
5
Which is true of X-linked recessive traits?
•
Males are at a higher risk of inheriting them because they only have one X chromosome.•
Males can inherit their X-linked genes from either their father or their mother.
•
Males can only pass X-linked genes to their sons.
•
Females are at a higher risk of inheriting them because they have two X chromosomes.
CONCEPT
X-Linked Traits
6
Which of the following statements about pleiotropy is true?
•
It is the inheritance pattern of a gene.
•
It is a single gene that affects many different traits.
•
It is a gene locus that is affected by the expression of other genes.
•
It is an X-chromosome that is inactive in some tissues.
CONCEPT
Polygenic Traits and Pleiotropy
7
Which process involves the growth of cells in a lab and their exposure to
DNA containing the desired gene?
•
Transfection
•
Transcription
•
Translation•
Transformation
CONCEPT
DNA Technology and Research
8
How many chromosomes are in a sperm cell?
•
46
•
23
•
22
•
44
CONCEPT
Meiosis and Genetic Variability
9
If parents only produce offspring with dominant traits, which of the
following is true?
•
One parent is heterozygous and the other is homozygous recessive.
•
Both parents are heterozygous.
•
At least one parent is homozygous dominant.
•
Both parents are homozygous recessive.
CONCEPT
Punnett Squares10
How many steps are in the translation process?
•
3
•
5
•
6
•
4
CONCEPT
Protein Synthesis, Part 2: Translation
11
Which of the following phases is part of mitosis?
•
S phase
•
Interphase
•
G1 phase
•
Telophase
CONCEPT
Mitosis
12
Which of these is true for PCR?
•
It is used to copy DNA rapidly.
•It is used to extract DNA from cells.
•
It is used to replace genes in DNA.
•
It is used to insert DNA into bacteria.
CONCEPT
DNA Technology and Research
13
A father has the autosomal recessive disorder PKU. It has been confirmed that his wife
is heterozygous for the disorder.
Which of the following represent the genotypes of the parents?
•
bb, Bb
•
Bb, BB
•
Bb, Bb
•
bb, bb
CONCEPT
Autosomal Recessive Traits and Disorders
14
Which of these chromosome abnormalities involves the exchange of part of
one chromosome with another nonhomologous chromosome?
•
Chromosome duplication
•
Chromosome inversion
•Chromosome deletion
•
Chromosome translocation
CONCEPT
Chromosome Structure Changes
15
In which phase of mitosis are sister chromatids pulled apart?
•
Anaphase
•
Prophase
•
Metaphase
•
Telophase
CONCEPT
Mitosis
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