Which of the following alleles is most likely to increase in a population due to natural selection? A. An allele that prevents peptidoglycan synthesis B. An allele that causes a helminth to produce eggs more quickly C. An allele that creates a non-functional cytoskeleton D. An allele that prevents algae from capturing blue light in photosynthesis

Which of the following alleles is most likely to increase in a population due to natural selection? A. An allele that prevents peptidoglycan synthesis B. An allele that causes a helminth to produce eggs more quickly C. An allele that creates a non-functional cytoskeleton D. An allele that prevents algae from capturing blue light in photosynthesis

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter20: The Protists

Section: Chapter Questions

Problem 13SA

See similar textbooks

Similar questions

the same as the genus of an animal that steals chloroplasts from algae. It can keep the chloroplasts alive for many months, thanks to genes that were originally part of the algae genome. What kind of animal is this? A. Luna both caterpillars, Insecta, Arthropod B. Marine Flatworm, platyhelminthes C. Sea slug, mollusk gastropod D. Bivalve, Mollusk 18
Which row in the chart below best describes ase reproduction? 6) Comparison of Offspring to Parents Number of Row Parents (1) one identical (2) one different (3) two identical (4) two different A) 1 B) 2 C) 3 D) 4
Scientists have studied, in detail, the evolution of the peppered moth, Biston betularia, over the last two hundred years. The peppered moths rest on tree trunks and are a tempting treat for birds in the area. In the mid-1800s the trees in their England habitat were covered with lichens, which are a light, grayish-green color. Although color variations occurred, the vast majority of the moths were light-colored. Because their light coloration effectively camouflaged them against the lichens-covered trees, they were not as easily seen by birds as darker colored moths. The light colored moths flourished.The environment changed, as the Industrial Revolution progressed. By 1900, the lichens had died and trees were coated with soot due to industrial pollution. The lighter colored moths were no longer "hidden" in their environment, and in fact, were easily seen by their predators. Their numbers dwindled. At the same time, the darker-colored moths flourished because of their ability to hide…
Horizontal gene transfer probably started soon after endosymbiosis. It has resulted in genes being moved from the mitochondrion to the nucleus. What is a reasonable explanation for why some genes still remain in the mitochondria? A. The products of those genes are rapidly damaged and need to be quickly replaced. B. The products of those genes are not required for organelle function. C. The ability for lateral gene transfer ended about a billion years ago and some genes simply got “stuck” within mitochondria. D. The products of those genes are only needed in the mitochondria.
You are exploring the Amazon rainforests before it was completely destroyed. Particularly, you focus on a family of plants that are known to produce chemicals with great medicinal benefit. You sequenced the genomes of several related species and identified the gene, vge (à very good enzymea) responsible for the production of a potential anticancer drug. On the right is the schematic of the genomic region where the vge genes resides. You found that different species have different number of the vge genes. For example, the genome of spécies A (Sp. A) carries three copies of vge genes (vge-A, vge-B, and vge-C). Although they all encode the VGE enzyme and have the same function, their DNA sequences are not entirely identical to each other. Based on this observation, you can conclude that vge-A and vge-B are O orthologous to each other O paralogous to each other O analogous to each other O monophyletic to each other O None of the above Sp. A Sp. B Sp. C Sp. D vge-A vge-B vge-A vge-A vge-B…
Which of these is a mechanical isolation mechanism? A. A sperm cannot reach or fertilize an egg. B. Courtship pattern differs O C. The organism lives in different locales D. The organism reproduces at different times of the year. O E. Genitalia are unsuitable for each other.
A group of environmentalists is studying the effects of recent commercial zoning to wildlife acreage on the biodiversity of a rural county. The group noted a steady decline in the population of animals, while bacteria and other protists remained constant. Which statement best discusses the reasons for the steady decline of animals as opposed to the protists? A. Bacterial growth is usually not affected by environmental changes because of asexual reproduction. B. The animals could not adapt to the new environment. C. Bacteria lived in areas that were not affected by the zoning D. The animals became susceptible to human and environmental harm.
A single-celled organism is placed in fresh water. The contractile vacuole pumps excess water out of the cell. How does this action help the organism survíve? O A. It helps the organism to communicate with other cells O B. It helps the organism convert energy O C. It helps the organism reproduce D. It helps the organism maintain homeostasis
In your own words, describe why the orange beetles survived in relationship to what you have learned about natural selection.
In Figure 2 a diagram shows how traits are shared (or not shared) in different generations. Based on the diagram: a. A, represents a plesiomorph trait. In how many generations is A shared (symplesiomorph)? b. C represents an apomorphictrait. What generations share C (synapomorphy)? c. E is considered an autapomorphic trait. Why do you think? d. What about B and D? How do we classify them?
According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the engulfed cell alive, rather than digesting it as food? A. The host cell would have been poisoned if it had digested the engulfed cell. B. The host cell was able to survive anaerobic conditions with the engulfed cell alive. C. The engulfed cell provided the host cell with CO2 D. The engulfed cell provided the host cell with ATP. E. The engulfed cell allowed the host cell to metabolize glucose.
Which of the following is NOT evidence for endosymbiosis? A. Bacteria and mitochondria both have nuclei. B. Bacteria and mitochondria both have ribosomes. C. Bacteria and mitochondria both have circular DNA. OD. Bacteria and mitochondria both reproduce via binary fission E. Bacteria and mitochondria both have membranes.