Evolution
Speciation
Bacteria and Virus Evolution
Diversification of Eukaryotes
100
Structures in different species that originated by heredity from a structure in the most recent common ancestor of the species (i.e. the bone structure of pterodactyl, bat, and bird).
Homologous
100
Group of actually or potentially interbreeding individuals.
Species
100
True or False: COVID-19 and SARS-CoV-2 mean the same thing.
False
100
What is a parasite?
a. An organism that can cause disease in another organism. b. An organism that gains energy and nutrients from another organism. c. An organism that requires another organism to complete its life cycle. d. All of the above.
d. All of the above
200
The study of the development of embryos; the more closely related species would be similar in their earliest stages of development.
Embryology
200
Type of speciation occurs when there is a geographic separation of populations from a parent species and subsequent evolution
Allopatric speciation
200
According to the podcast, scientists are most concerned about which of the following
a. Vaccine escape b. SARS-CoV-2 evolving and developing vaccine resistance
c. New mutations. d.None of the above
d. None of the above
200
Under a microscope, the cells of mushrooms, plants, and animals all have visible nuclei. This makes them all
a. Eukaryotic b.Autotrophs
c.Heterotrophs d.Prokaryotic
a. Eukaryotic
300
What information does Hardy-Weinberg provide about populations that are in equilibrium?
A.Frequency of heterozygotes B.Frequency of homozygous recessives C.Frequency of homozygous dominants D.Frequency of recessive allele E.Frequency of dominant allele F.All of the above
F. All of the above
300
Which of the following is a prezygotic isolation mechanism?
a.Hybrid infertility b.Temporal isolation
c.Low hybrid zygote viability d.Low hybrid adult viability
b. Temporal isolation
300
Each of the following statements describes a step in the replication of SARS-CoV-2. Which of the following lists the steps in the order they occur in the human body.
a.The virus releases its RNA genome into the cell b.Viral RNA polymerase helps transcribe more copies of the virus’s RNA c.The virus binds to a receptor on a human cell’s membrane d.New viruses travel to the cell membrane of the infected cell and are released outside the cell e.The virus’s RNA is translated into proteins by the cell’s ribosomes
1.c,a,e,b,d 2.c,e,a,b,d 3.d,a,c,e,b 4.c,a,e,d,b
1.c,a,e,b,d
300
Which of the following is NOT true about natural selection?
a.It depends on both inheritance and variation. b.It ensures that only the biggest and the strongest organisms survive. c.It explains how environments affect which organisms live and reproduce. d.It results in adaptations that improve an organism’s chances of survival.
b.It ensures that only the biggest and the strongest organisms survive.
400
What is true about positive selection for a trait? Check all that apply.
I. The frequency of the trait increases. II. Survival of those with the trait is enhanced. III. Reproduction of those with the trait is more likely. IV. Future generations of offspring of parents with the trait are more likely to survive.
a. I and II only. b.I and III only.
c. IV only d. I, II, and III only.
e. All of the Above. f.None of the above
d. I, II, and III only.
400
Sympatric Speciation most likely requires:
a. Disruptive selection b. Stabilizing selection
c. Directional selection d. Neutralizing selection
e. None of the above
a. Disruptive selection
400
In the virtual lab, you successfully purified two recombinant spike protein truncations, S1 and S2. To test whether the vaccine is safe and effective for humans, what should be your next step?
a. You need to study the effects of adding the purified protein to an organism to determine how their immune system responds and if it produces antibodies against the purified protein.
b. You need to study the effects of adding the purified protein to tissue culture, to determine how individual cells respond to the protein.
c. You need to study the effects of adding the purified protein to the virus, to determine if it can stop virus binding to cells.
a. You need to study the effects of adding the purified protein to an organism to determine how their immune system responds and if it produces antibodies against the purified protein.
400
In Mission 2, the fossil record is discussed. According to the video, fossils provide each of the following except:
a. Examples of transitional species. b. Evidence that evolutionary change tends to be gradual. c. Physical proof of extinction and speciation. d. A complete record of past life on Earth
d. A complete record of past life on Earth
500
For this question, we will utilize a population of Martians that is in Hardy-Weinberg equilibrium (HWE). The dominant Martian phenotype is the possession of two antennae. In this population, 84 of the Martians have two antennae, while 16 lack antennae. What is the frequency of homozygous recessive individuals in this population?
A. 0.16 B. 0.4
C. 0.6 D. 0.24
E. 0.48
A. 0.16
500
You find one fossil that appears to be a new species. You determined it was a new species by using:
a. The Biological Species Concept. b. The Ecological Species Concept. c. The Morphological Species Concept. d. None of the above. e. All of the above
c. The Morphological Species Concept.
500
Protein purification involves several steps. What was the purpose of testing the flow-through and wash along with your product?
Both served as a control to follow which proteins remain bound to the column.
It helped to identify the proteins that were present in the sample.
500
What does the circled node represent?
a. The common ancestor species of B and C. b. A speciation event. c.All of the above. d.None of the above
c. All of the above