Why does sympatric speciation via allopolyploidy occur? O A. When disruptive selection and assortative mating act contemporaneously (during the same time) O B. When strong prezygotic isolation prevents hybridization between two species C. When meiotic error in a single species results in unreduced gametes that can self-fertilize D. When individuals of two species mate and their offspring are sterile but eventually produce unreduced gametes that self-fertilize O E. When geographic isolation and natural selection occur contemporaneously

Q: Define evolution breifly using terms like gene alleles phenotype etc.

A: Evolution explains how living organism change at genetic level after its origin and over generation.…

Q: In a species the haploid number of chromosomes is 4. Independent assortment has the possibility of…

A: Two single chromosome divide gene or chromosome pair.  As a result two single haploid chromosome…

Q: The diagram of a gamete below depicts a single chromosome within a gamete. The bars spanning the…

A: The term "genetic diversity" describes the wide range of genetic traits present in a population or…

Q: cross between two fish species occurs but the developing embryo does not develop. O Hybrid…

A: Development: As an animal embryo grows, its cells divide, expand, and migrate in predictable…

Q: To summarize: The concept of energy flow through a food web.

A: The Sun provides energy to the Earth in the form of light. The organisms efficiently exploit the…

Q: the Cavendish banana, the world's most popular fruit, is currently threatened by extinction due to a…

A: Meiosis takes place during the sexual reproduction. It is a process of cell division where the…

Q: ive barrier is most likely to prevent interbreeding between a polyploid species and its diploid…

A: Speciation can be defined as the splitting of the population into two or many species, such that the…

Q: Fatty acids must associate with lipid chaperones in order to move within the cell. Why are these…

A: Fatty acids must associate with lipid chaperones in order to move within the cell because Fatty…

Q: Explain the processes involved in autopolypoilization as well as allopolyploidization and how these…

A: Autopolyploidy is a type of polyploidy in which there is a numerical increase of the ame genome,…

Q: The goldenrod gall fly mates and lays its eggs on the goldenrod plant and the larva live inside the…

A: Speciation is the process in which new species are formed due to either geographical isolation or…

Q: 1.  An earthquake and tsunami, Richter scale of 7, destroyed a small village near the epicenter in…

A: *Sympatric speciation means  the splitting of an ancestral species into two or more groups that are…

Q: Identify the benefits and costs of sexual recombination in the context of evolution. Select all that…

A: Sexual recombination leads to the shuffling and recombination of genetic material from two parent…

Q: Which is NOT an affect of chromosomal translocations? A. Translocation breaks can disrupt existing…

A: In a translocation, a segment from one chromosome is transferred to a nonhomologous chromosome or to…

Q: Crossing-over is all of the following EXCEPT   A. rearranging genes to combine some of a person's…

A: Crossing over is the phenomenon or event in which exchange of genetic material takes place resulting…

Q: Some species reproduce asexually (they do not undergo meiosis). What consequences do you think this…

A: Reproduction is a biological process in which an organism reproduces biologically identical…

Q: In which type of genetic sex determination (i.e. sex is determined by genetic differences, not the…

A: Sex determination is a biological.system which determines the sexual characteristics, hence the sex…

Q: Which of the following is correct as the polyploidization mechanism?    options:   A, Two related…

A: The correct answer is Option C. i.e. (Both A and B)

Q: You want to cultivate truffles for cooking. What is the problem with cultivating a species that only…

A: Ascomycetes is a class of diverse fungi. They include pigmented moulds, powdery mildews, yeasts, cup…

Q: An organism that has more chromosomes than is appropriate for its species is said to be O A.…

A: The chromosomes are the thread like substances found in the nucleus of the plants and animals. These…

Q: Which of the following technologies can best differentiate between a diploid wild banana and a…

A: Edible banana have either 22 , 33 or 44 chromosomes that represent diploid , triploid and…

Q: Which of the following mechanisms are important for generating new genotypes in species that…

A:

Q: What about allopolyploidy is true? 1. arises from the doubling of chromosomes 2. Arises from the…

A: When two closely related species mate and create a hybrid of chromosome sets from both parents, this…

Q: Scientists studying reproduction compared three closely related species of bagworm moths. The…

A: Reproduction is the biological process for producing new young ones from parent.

Q: Plant species A has a diploid number of 8. Plant species B has a diploid number of 4. A new species,…

A: Variation in genomes can occur in many ways-  1) if the variations occur with in the number of…

Q: How does the sexual life cycle increase the genetic variation in a species? a. by providing gametes…

A: The correct option is E.During sexual reproduction, the parents produce haploid gametes through the…

Q: What is the importance of genetic variation that is seen as a result of processes such as crossing…

A: The process involving the swapping over of the genetic material which occurs in the germline level…

Q: 4 Species I is diploid (2n = 8) with chromosomes AABBCCDD; related species II is diploid (2n = 8)…

A: Answer 4. a). AAABBCCDD  - Trisomy of A chromosome b). MMNNOOOOPP - Tetrasomy of O chromosome c).…

Q: ecies I has 2n = 12 chromosomes (AABBCCDDEEFF). A closely lated species (Species II) has 2n = 8…

A: Allotriploid species contains three sets of chromosomes from two different species. Its…

Q: If a tetraploid species gave rise to a new species by autopolyploidy, how many sets of homologous…

A: Introduction : The number of full sets of chromosomes in a cell, and thus the number of potential…

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.