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A: Drosophila belongs to the family Drosophilidae, whose members are commonly called as small fruit…
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A: Organisms reproduce to make copies of them or to produce an organism with a similar characteristic…
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A: Introduction A sex chromosome is a chromosome that is variable in form, size, and function from an…
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A: Aphids refer to the small insects that belong to the Aphidoidea superfamily. Aphids are…
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A: Speciation continuum It can be defined as the continous sequence of genetically based changes that…
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A: The evolutionary relationship helps to understand the relationship among the different species,…
Q: How many genes influence the formation of new species?
A: Formation of new species is known as speciation. In speciation, two different population must breed…
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Q: Is the male bee produced by sexual reproduction? Explain.
A: Sex determination is the establishment of female and male individuals or organs of an individual.
Q: Who discovered Drosophila melanogaster?
A: Drosophila belongs to the family Drosophilidae, whose members are commonly called as small fruit…
Q: What does Speciation and Divergency mean in Biology?
A: Answer: Introduction: In biology, speciation is a process of a new type of plant or animal species…
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A: Gene drive system is a technique by which probability of adding a gene in an increased population.
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Q: Explain how and why the queen honey bee abort the sexual maturation of the worker bees?
A: Queen bees have a specialised reproductive system , which lets them make some choices on the types…
Q: Is the presence of large numbers of chromosomes in an organism a hindrance to sexual reproduction?
A: Even under a microscope, chromosomes are not visible with in nucleus of a cell that is not dividing.…
Q: Does the difference in gene expression explain the different sexual behaviors of the two species?
A: Gene expression is defined as the process of conversion of information stored in the DNA to the…
Q: How does meiosis contribute to genetic diversity?
A: Meiosis is a special type of cell division that occurs in sexually-reproducing organisms and used to…
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Q: What is the definition of gene flow? How was gene flow blocked between these species?
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A: In a eukaryotic organism, sexual production is the necessary advancement in creating genetic…
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A: Single-gene disorders have five distinct inheritance modes: autosomal dominant, autosomal recessive,…
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A: Genetically different refers to the difference in the composition of the genetic material of the…
Q: What is polymorphism in Entomology ?
A: Entomology can be defined as the study of insects. It also includes the study of how insects…
Q: What is speciation?
A: Introduction In this question we will discuss about the speciation.
Q: How do scientists use mitochondrial DNA to estimate reproductive isolation?
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A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…
Q: What role do homeotic genes play in the development of fruit flies?
A: Drosophila melanogaster popularly known as fruit flies is one of the common organisms used in…
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Q: Does Meiosis Contribute to Genetic Diversity?
A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…
Q: How, then, can speciation occur if gene flow exists?
A: Speciation are group of interbreeding natural population . Speciation is the formation of one or few…
Q: Where are there over 250 species of fruit flies?
A: Australia is the place where more than 250 species of fruit flies are present.Most of these species…
Q: What is the interaction between two species called?
A: If the individuals of two different species stay at a common geographical area, they may interact…
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A: Pseudoalleles are formed by duplication of a gene which further evolved to develop new functions.…
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Q: What is the molecular clock?
A: Mutation is an abrupt change in the DNA sequence and nucleotide base pairs. Mutation is caused by…
Q: How is the mating type of a yeast cell determined?
A: The yeast is a single celled eukaryote that exhibit both diploid and haploid mode. The mating of…
Q: explain “alternation of generations” as if you were explaining it to your sibling in 5th grade
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Q: What is mean by Nature’s own morphing ?
A: The physical world around us constitutes our nature. It consist of everything such as plant,…
Where are there over 250 species of fruit flies (Drosophila)?
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- Propose a hypothesis that could explain the following observation. A graduate student performing studies on mutations in drosophila (fruit flies) discovered a strain of flies with a silent mutation in the gene controlling the shape of the wings. Further investigation has shown that this mutation is lethal in flies who are homozygote. Flies that are homozygote wild type or heterozygote can develop and are able to survive.Which Hox gene cluster is illustrated in the figure below?Many animals have the p53 gene that makes a protein that regulates the cell cycle and helps prevent the formation of cancer cells. The table below shows the percentage of p53 gene sequences that the 4 species have when compared to humans. Species Percentage of p53 Gene Sequence Similar to Human Human 100 Horse 60.7 Fruit Fly 15.5 Rat 76.8 Pig 81.3 Which organism in the table is most closely related to humans based on this data? pig horse fruit fly rat 0 0 0 0
- You have been put in charge of developing a breed of domesticated dog that lives to be 40 years old on average. You will need to brainstorm for several minutes on how you could extend the life of dogs. You should refer to the example of the fruit flies from lecture.As part of this project, the breeders will need to put together an informational brochure to hand out to veterinarians and prospective owners of the dogs, which discusses: first, how dogs' age will be extended, then, some of the potential consequences of having a pet that lives for such a long time. The brochure will need to inform prospective owners that these dogs may live 40 or more years. It should point out that someone who is 30+ years old may have to plan on care for the pet if it were to outlive him or her. Also, there will be more lifetime costs associated with these dogs simply because they live so long. These dogs may be prone to diseases that are not seen in dogs with shorter life spans. Finally, there may be…How do scientists use mitochondrial DNA to estimate reproductive isolation?How is the mating type of a yeast cell determined?
- What is speciation?Morgan and colleges were ultimately able to identify 4 linkage maps in fruit flies. How many pairs of chromosomes do fruit flies have based on those data? 2 8 6 4Volvox carteri, an volvocine alga, has approximately 2000 somatic cells and only 16 reproductive or germ line cells. The observation that multicellular individuals, like Volvox, have a much smaller subset of germ line cells compared to somatic cells appears to be general rule. Which of the following is the best evolutionary explanation for why this is the case? A) Organisms can biologically only contain a small number of germ line cells as they are always larger than somatic cells. B) Multicellular individuals with a germ line vs. somatic cell line differentiation only evolved a single time, thus all members of this lineage share the same scheme of more soma cells with a much smaller subset of germ line cells. C) Having a smaller subset of reproductive cells helps reduce the likelihood of cheating from evolving, which in turns prevents the collapse of the multicellular individual system. D) None of the above.