Quiz

QUIZ

1. What organisms are least likely to engage in asexual reproduction?

a. Bacteria b. Archaea c. Fungi d. Animals

Answer: d. Animals, particularly multicellular animals, rarely engage in asexual reproduction, while this type of reproduction is much more common in the other organism categories.

2. What phenomenon in bacterial genetics is least likely to be considered “quasisexual” activity?

a. Binary fission b. Transduction c. Conjugation d. Transformation

Answer: a. Unicellular organisms that engage in these types of behavior are considered quasi-sexual because they involve the uptake of genetic material from outside the parent cell; however, binary fission is a strictly asexual reproductive activity.

3. What type of spore formation is considered truly asexual?

a. The creation of diploid spores through mitosis b. The creation of haploid spores c. The creation of spores that are fertilized at later time d. The creation of spores through meiosis

Answer: a. Only when the spore formation is made through mitosis and involves diploid spores does it qualify as truly asexual reproductive spore formation.

4. Which organism does not go through fragmentation, which is the creation of a new and mature organism from a fragment of the parent organism?

a. Planarian b. Mushrooms c. Sea stars d. Lichens

Answer: b. Fragmentation is an asexual process that involves the ability to create new, mature organisms from a part of the parent. Each of these organism types do this except for mushrooms.

5. What factor most allows two advantageous genes to show up on the same offspring chromosome?

a. Recombination b. Sexual selection c. Mate selection d. DNA repair

Answer: a. Because there is recombination in meiosis, two separate advantageous genes can show up on the same chromosome after just a few generations.

6. According to the Red Queen Hypothesis, what helps the offspring survive better through sexual reproduction rather than asexual reproduction?

a. Increased ability to compete for food sources b. Improved longevity over asexual offspring c. Better resistance to parasites d. Improved hardiness in adverse environmental circumstances

Answer: c. According to this hypothesis, offspring made through sexual reproduction have a better resistance to parasites. This has not been proven to be accurate in all practical settings.

7. What is a disadvantage of asexual reproduction?

a. Energy expenditure is too great. b. The organisms are not very flexible. c. It is harder to control population numbers. d. The reproductive process requires pollinators.

Answer: c. The fact that population numbers are harder to control and overcrowding can happen is a major disadvantage with asexual reproduction.

8. What type of mating system is involved in honeybee relationships?

a. Monogamy b. Polygyny c. Promiscuity d. Polyandry

Answer: d. Honeybees engage in polyandry, in which there is one female and multiple potential male mates.

9. What is a more indirect benefit of selecting a good mate for the sex of a species that is choosy about mates?

a. Better ability of the mate to fight off predators. b. Better territory of one of the mates. c. Better parenting ability of one mate over another. d. Better genes passed on to the offspring.

Answer: d. Each of these is seen as a direct benefit of having a certain mate chosen over another, except for better genes getting passed on, which is considered an indirect benefit of mate selection.

10. What is not a reason why a choosy gender would select a specific mate?

a. The choosy gender prefers similar genetics to her own for the purposes of disease resistance. b. The choosy gender may simply have a preference for certain traits in a mate. c. The choosy gender selects a certain trait because it would indicate better parenting skills. d. The choosy gender may select a trait that confers a genetic advantage to some mates.

Answer: a. The choosy gender is more likely to select a dissimilar genetic situation in a mate for better disease resistance.