Lab Exam Flashcards
A male who has only one recessive allele for colorblindness, an X-linked disorder, will have what phenotype?
A.) Colorblindness
B.) Standard color vision
C.) a carrier
D.) More information is needed
A.) Colorblindness
Which of the following plants have vascular tissue but not pollen?
A.) Mosses
B.) Ferns
C.) Gymnosperms
D.) Angiosperms
B.) Ferns
What is the primary difference between Gram negative and Gram positive bacteria?
A.) The shape of their colonies.
B.) A difference in the number of cell membranes.
C.) Gram positive cause disease, Gram negative do not.
D.) None of the above
B.) A difference in the number of cell membranes.
A Punnett Square can be used to determine the probable genetic outcomes of more than 1 trait at a time.
True
False
True
A negative control :
A.) Contains the substance you are testing for
B.) Does not contain the substance you are testing for
C.) Both statements are correct
D.) Neither statement is correct
B.) Does not contain the substance you are testing for
How many offspring are expected to be homozygous recessive in a monohybrid cross?
4
3
2
1
1
Changes in the dependent variable may be caused by the independent variable.
True
False
True
Opportunistic infections may occur if antibiotics are used in inappropriate situations.
True
False
True
Antibiotics are used to treat fungal infections.
True
False
False
The process of making RNA from a DNA template is termed:
A.) Transcription
B.) Translation
C.) Conjunction
D.) Protein synthesis
A.) Transcription
Mosses have which of the following characteristics?
A.) flowers, seeds
B.) seeds, vascular tissue
C.) vascular tissue, flagellated sperm
D.) cuticle, flagellated sperm
D.) cuticle, flagellated sperm
Which of the following is not a benefit of bacteria?
A.) production of medicines
B.) nitrogen fixation
C.) atmospheric penetrance
D.) Bioremediation
C.) atmospheric penetrance
What is the complementary RNA sequence to AUCGGU?
A.) TAGCCA
B.) TCGAAC
C.) UAGCCA
D.) UCTCCA
C.) UAGCCA
Which of the following plants have vascular tissue but not seeds?
A.) Mosses
B.) Ferns
C.) Gymnosperms
D.) Angiosperms
B.) Ferns
Experiments can have multiple experimental (treatment) groups.
True
False
True
If an organism’s genotype is AA, the organism is homozygous dominant.
True
False
True
How many offspring are expected to have dominant phenotype in a monohybrid cross?
4
3
2
1
3
The following is an example of a null hypothesis:
Overexposure to ultraviolet light will not affect the development of skin cancer.
True
False
True
Antibiotics may affect Gram negative bacteria differently than Gram positive bacteria.
True
False
True
The alternative hypothesis is accepted if:
A.) The pvalue is less than 0.05
B.) The pvalue is greater than 0.05
C.) The averages look way different.
A.) The pvalue is less than 0.05
In a cell, DNA exists as a double helix that carries genes for inheritable traits.
True
False
True
Organisms that have 2 identical alleles for a gene are called
A.) Heterozygous
B.) Homozygous
C.) Dominant
D.) Hybrid
B.) Homozygous
You test a new antibiotic to see if it is effective at killing bacteria. The antibiotic is the independent variable.
True
False
True
Which of the following is the most narrow spectrum?
A.) antibiotic that kills only three strains of bacteria
B.) general antibiotic
C.) antifungal
D.) antimicrobial
A.) antibiotic that kills only three strains of bacteria
If you’re a carrier of a recessive allele for genetic diabetes, which genotype person could you have a child with that would insure your offspring would not have this particular form of diabetes? (this is a standard Mendelian trait)
A.) Homozygous Dominant
B.) Heterozygous
C.) Homozygous Recessive
D.) All of the above will result in an affected offspring
A.) Homozygous Dominant
After running a statistical analysis of experimental data compared to control, you receive a pvalue of 0.0087, you should:
A.) accept your null hypothesis and reject your alternative hypothesis
B.) reject your null hypothesis and accept your alternative hypothesis
C.) accept both your null and alternative hypotheses
D.) reject both your null and alternative hypotheses
B.) reject your null hypothesis and accept your alternative hypothesis
A genotype is the measurable or view-able trait for a given allele combination - like having blond vs. black hair.
False
True
False
Most plant species are from this group.
A.) Mosses
B.) Ferns
C.) Gymnosperms
D.) Angiosperms
D.) Angiosperms
What type of RNA is used for carrying amino acids to ribosomes?
A.) mRNA
B.) rRNA
C.) tRNA
D.) cRNA
C.) tRNA
When testing the effects of an antibiotic on two types of bacteria to see which bacterial type is more susceptible, the bacteria type is the dependent variable.
True
False
False
You test a new antibiotic to see if it is effective at killing bacteria by measuring the zone of inhibition. The antibiotic is the independent variable
True
False
True
Which of the following plants has a cuticle, but not vascular tissue?
A.) Mosses
B.) Ferns
C.) Gymnosperms
D.) Angiosperms
A.) Mosses
Angiosperms have which of the following characteristics?
A.) flowers, seeds
B.) cuticle, but no vascular tissue
C.) vascular tissue, flagellated sperm
D.) cuticle, flagellated sperm
A.) flowers, seeds
What is the function of the ribosome?
A.) Processing, packaging and distributing molecules
B.) Protein production
C.) Helps support
D.) Produces subunits of ribosomes
B.) Protein production
Which of the following plants have seeds, but not fruits?
A.) Mosses
B.) Ferns
C.) Gymnosperms
D.) Angiosperms
C.) Gymnosperms
What do we mean by the term “naked” seed?
A.) There is no fruit around the seed.
B.) The seed has no clothes!
C.) Seeds do not contain spores
D.) The seed lacks an endosperm.
A.) There is no fruit around the seed.
What phenotypic ratio would you expect to get from a cross of a heterozygous tall plant with a homozygous dwarf plant (tall is dominant)?
A.) all tall plants
B.) all dwarf plants
C.) 3/4 tall to 1/4 dwarf
D.) 1/2 tall to 1/2 dwarf
D.) 1/2 tall to 1/2 dwarf
Which of the following is an example of heterozygous phenotype?
BB aa Ba Bb None of the above
None of the above
Angiosperms are sporophyte dominant.
True
False
True
In the gel electrophoresis experiment, the comparative size of the molecule that moved furthest is expected to be:
A.) Large sized
B.) Medium sized
C.) Small sized
D.) Acidic
C.) Small sized
An affected individual for an autosomal dominant genetic disorder is:
A.) homozygous dominant.
B.) homozygous recessive.
C.) heterozygous.
D.) More information is needed.
D.) More information is needed.
The null hypothesis is accepted if:
A.) The pvalue is less than 0.05
B.) The pvalue is greater than 0.05
C.) The averages look very similar.
B.) The pvalue is greater than 0.05
A person referred to as a “carrier” for an autosomal genetic disorder is:
A.) homozygous dominant.
B.) homozygous recessive.
C.) heterozygous.
D.) More information is needed.
C.) heterozygous.
In pea plants, the tall allele is dominant to the dwarf allele. What phenotypic ratio would you expect to get from a cross of a homozygous tall plant with a homozygous dwarf plant?
A.) all tall plants
B.) all dwarf plants
C.) 3/4 tall to 1/4 dwarf
D.) 1/2 tall to 1/2 dwarf
A.) all tall plants
An affected individual for an autosomal recessive genetic disorder is:
A.) homozygous dominant.
B.) homozygous recessive.
C.) heterozygous.
D.) More information is needed.
B.) homozygous recessive
Small sample sizes in an experimental study should reduce confidence in the results of the study.
True
False
True
Transcription takes place in the nucleus and translation in the cytoplasm in eukaryotic cells.
True
False
True
Antibiotics should be taken until you feel better, and then you should discard the remaining pills.
True
False
False
A gametophyte produces spores.
True
False
False
Which part of the plant life cycle produces sperm and eggs?
A.) gametophyte
B.) sporophyte
C.) spores
D.) gametes
A.) gametophyte
You should accept a null hypothesis if a test gives a result of > 0.05
True
False
True
