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

Q: What is the isolation-by-distance model?  A. The genetic similarity between groups will decrease as…

A: The isolation-by-distance model is a concept in population genetics. It is based on the idea that…

Q: Why is the Nipah virus a great illustration of a zoonotic disease?   A. Because it's carried…

A: The objective of the question is to understand why the Nipah virus is a good example of a zoonotic…

Q: A researcher compares several species of maple tree by examining the amino acid sequence of a…

A: Answer : D. The genetic makeup of the maple tree population has changed over time.

Q: Which is an example of directional selection after several generations on an island population from…

A: Introduction :- "Evolved" refers to the process of biological evolution, which is the gradual change…

Q: Darwin’s First Clues included _______. a. he saw two different species of flightless bird living in…

A: Darwin's theory of evolution can be further divided into 5 parts: "evolution as such", common…

Q: If a scientist discovers a new monkey in Paraguay, its genome will probably be MOST similar to that…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: Which of these statements about the virulence of rabbit myxoma virus is TRUE? A. Rabbit myxoma virus…

A: Myxoma virus It is a DNA pox virus.  It is a member of the lepropoxvirus group. It spreads through…

Q: What is a cline? a. the slope of a mountain where a population lives b. the degree to which a…

A: The population variation can be determined by genes and environment. The gender determination in…

Q: Constant washing with antibiotic soap initially kills most of the bacteria on your hands but…

A: Introduction Various bacterial strains caused wide range of diseases and are pathologically harmful.…

Q: According to the video “The Biology of Skin Color”, why is lighter skin needed in areas closer to…

A: The question is asking about the biological reason behind the necessity of lighter skin in areas…

Q: What is the greatest source of genetic variation in plant and animal populations?   a. Geographic…

A: In both plant and animal populations, genetic variety is an important component of evolution and…

Q: The process that involves passing on genetic informationbetween generations is calleda. natural…

A: Answer- Reproduction is the process by which new organism (progeny) is formed from the previous…

Q: This phenomenon happens when two or more beneficial mutations spread through a population at the…

A: When two or more beneficial mutations spread through a population at the same time a particular…

Q: A heterodont organism has: A. An absence of molars B. Only canines C.…

A: A heterodont organism is one that has many tooth types in its dentition, each of which has a unique…

Q: Which of the following is an example of Genetic drift? A. Red flowers with AA genotype evolve after…

A: Evolution is a steady phenomenon that bring about alteration in life from simple to more complex.…

Q: The transfer of an antibiotic resistance gene from one bacterialspecies to a different species is an…

A: Resistant bacteria, through poor hygiene and close proximity, spread to other individuals. Resistant…

Q: group of people have already been chosen to go on the first manned space flight to Mars.  Describe…

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Q: What does “descent with modification” mean? a. Populations that change quickly are likely to become…

A: "Descent with modification" is a core concept in evolutionary biology that Charles Darwin…

Q: How does sexual selection differ from natural selection? a. It does not require heritable traits. b.…

A: Natural selection typically results in people who are well-adapted to their environment, whereas…

Q: The Brachyury and Tbx5 in vertebrates and the Ap3 gene in flowering plants a. are examples of Hox…

A: It is expressed in the developing notochord and the Brachyury gene of ascidians encodes a…

Q: Why is the Nipah virus a great illustration of a zoonotic disease?  A. Because it's carried by fruit…

A: The objective of the question is to understand why the Nipah virus is a good example of a zoonotic…

Q: Sieve tubes and sieve elements are a. homoplastic because they have different function. b.…

A: Pholem is a permanent vascular tissue system associated with the conduction/transport of food…

Q: Can viruses adapt by natural selection?

A: Virus is defined as a submicroscopic infectious parasite that resides inside a living cell. It has a…

Q: According to Darwin’s theory, organisms that are the most fit A. have the longest life spans. B.…

A: Introduction Natural selection is the process by which organisms with advantageous traits are more…

Q: Which of the following is an example of gene flow? O a. horizontal gene transfer b. sexual selection…

A: Gene flow occurs when genetic material is exchanged between two or more populations of the same…

Q: Which of these bestexplains why the hair that grew back where the ice pack was placed was black and…

A: The correct answer for the question will be: B. The genes for black hair were activated by specific…

Q: ccording to "The Complex Evolution of Homo sapiens", what is the significance of the L3 gene and who…

A: The question is asking about the significance of the L3 gene and the identity of the L3 woman…

Q: After a highway is destroyed by an earthquake, two formerly isolated populations of deer can now…

A: D. Gene Flow The answer to this question is gene flow as it refers to the exchange of genetic…

Q: A small number of animals moves away from a large ancestral population on the continental mainland…

A: The species diversity is the number of species present in a particular area. The species diversity…

Q: A population of bats becomes isolated after colonizing an island, developing a high incidence of a…

A: The population is the group of individuals belonging to the same species and able to interbreed.…

Q: When genes from two parents mix together to form the genes of their child, this is called a.…

A: A gene can be described as the basic unit of inheritance. A gene is transferred from one generation…

Q: Which of the following statement about the outcome of the evolution of a new species through…

A: Evolution by Natural Selection and by Hybridization -- Hybridization -- It is defined as the…

Q: Insectivora is a taxonomic grouping that was used to describe insect-eating mammals like armadillos,…

A:

Q: According to studies of SARS- CoV-2, the typical genetic mutation rate for this virus is 1 mutation…

A: Viruses have the ability to mutate over time. As they undergo replication minute errors are…

Q: elect the statement that does NOT support the origin of excavates that lack plastids, have highly…

A: Excavata belongs to the category of eukaryotes that are photosynthetic, unicellular, heterotrophic…

Q: The process in which environmental pressures result in the differential survival and reproduction of…

A: Introduction  Evolution is the key process that regulates the survivability and continuity of…

Q: If populations of white rhinoceros (Ceratotherium simum) continue to decline, one approach to…

A: Captive breeding is a program under which the endangered species are allowed to breed inside the…

Q: Which of the four evolutionary mechanisms make a population better adapted to its environment? A.…

A: The four basic evolutionary mechanisms are: Natural Selection Genetic drift Mutation Gene flow…

Q: Why do scientists believe that mitochondria evolved before chloroplasts? A. because all eukaryotic…

A: A cell is the basic unit of life.  All living creatures are made up of cells, ranging from…

Q: What is an example of neutral evolution in humans?  A. Eye Color  B. Humans do not have any traits…

A: The objective of the question is to identify an example of neutral evolution in humans from the…

Q: If two mouse populations do not interbreed but are found in the same area, they may form different…

A: Answer :- Option (D) is correct. - Adaptive radiation.

Q: Why is reproductive isolation insufficient to define a species? A. Reproductive isolation doesn't…

A: Option D is the correct answer i.e. Reproductive isolation can be accomplished in a variety of ways.

Q: Which of the following would be a good example of premating reproductive isolation?

A: Premating reproductive isolation refers to mechanisms that prevent individuals of different species…

Q: Choose the statement that is incorrect. a. Phylogeny helps us study the spread of viruses through…

A: Phylogeny refers to the relationship between different groups of organisms and their evolution over…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.