On an island with no large predators, some ducks are born with a mutation that gives them stubby little wings. These ducks can’t fly, but there’s really no need to fly since there are no predators. In fact, they have an advantage because they don’t have to eat as much to support those big wings like the other ducks. Over time, the flightless ducks reproduce better than the regular ducks, and eventually all the regular ducks die out. What characteristic of life is being demonstrated here? Group of answer choices

Q: Steven Frank and Laurence Hurst argued that a cytoplasmically inherited mutation in humans that has…

A: The mutation is the sudden deleterious effects in the DNA sequences, they can arise when the DNA is…

Q: The Hawaiian Islands were formed as underwater volcanoes that became so tall that they protruded…

A: The volcanoes can also be formed in the middle of a plate where magma rises upward until it erupts…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: Introduction :- A mouse, or mice as a group, is a tiny animal. Mice have a pointed snout, short…

Q: Mutation (a) can produce new alleles. (b) can be harmful, beneficial, or neutral. (c) is a change in…

A: The hereditary substances of all organisms are Nucleic acids. Deoxyribonucleic acid (DNA) is the…

Q: A woman has just been diagnosed with breast cancer. Her doctor tells her that while cancer is a…

A: A woman has just been diagnosed with breast cancer. Her doctor tells her that while cancer is a…

Q: You are studying Hox genes in crane flies (Leptotarsus testaceus). The cranefly genome is sequenced,…

A: To find: Where the homologue of EVE gene is expressed in cranefly embryos

Q: In a genomic comparison between humans and yeast, what geneswould you expect to be similar?

A: Saccharomyces cerevisiae  is otherwise called as bakers yeast. It is an eukaryotic organism with…

Q: When a gene is duplicated resulting in two copies, there are three possible fates for the duplicate…

A: When a gene experiences duplication, the fate of the duplicate copy can change, driving to different…

Q: Compare and contrast the mitochondrial and nuclear genomes. How are they similar, how are they…

A: A genome is an organism's complete set of genetic instruction. Each genome contains all the…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: Genetic diversity is defined as the number of different alleles in a population. This term is used…

Q: senescence

A: Definition of Senescence: The process of gradual eradication of functional characteristics in living…

Q: Why are humans genetically less variable than penguins?

A: Genetic diversity is the complete number of genetic qualities in the genetic cosmetics of a species,…

Q: Which statements explain the most likely cause of the difference between the hands of chimpanzees…

A: The hands of gorilla has a significant difference with the hands of chimpanzees. Using the method of…

Q: Why different genes related each other ?  If level of GeneB is a function of GeneA, what could this…

A: Gene expression is regulated by different factors both extrinsic and intrinsic to the cell.

Q: 5)Would you expect mutations to always produce recessive traits? Why or why not?

A: Mutations are sudden inheritable variations that occur in an organism's genetic material due to…

Q: Among different species, does extranuclear inheritance always follow a maternal inheritance pattern?…

A: Yes, extranuclear inheritance invariably is contributed by the mother. In many organisms, certain…

Q: Make an essay about this. Suppose it is possible to use genetic engineering to make people more…

A: Answer :: Genetic Manipulation : Genetic engineering also called genetic modification is the direct…

Q: Suppose it is possible to use genetic engineering to make people more intelligent. Do you think this…

A: Recent genetic engineering technology has got miraculous results, which people dreammed for years…

Q: The phenotype of a heterozygous mouse (Aa) is agouti.  The agouti banding pattern is due to altered…

A: * Homozygous dominant and Heterozygous will produce agouti that is AA or Aa respectively  and the…

Q: Certain genes influence the probability of developing Alzheimer’s disease or other conditions that…

A: Alzheimer’s disease is the major cause of dementia in people who are older than 65 years. It is a…

Q: Why do different species of animals have different numbers of chromosomes in their cells?

A: Chromosomes are the strands of DNA or genetic material. It is usually linear for macro-organisms and…

Q: You discover a recessive mutation that results in roses with no thorns (n). Investigating the…

A: No thorns is a recessive mutation. Homozygous condition of the gene (nn) produces roses with no…

Q: If this model continues, with no major changes to the environment, what do you expect to happen? A)…

A: Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing…

Q: A colleague has given you a population of avian neural crest cells to use in an in vitro culture…

A: Within the neural tube, multipotent stem cells give rise to neural crest cells. Presumptive…

Q: A woman has just been diagnosed with breast cancer. Her doctor tells her that while cancer is a…

A: A woman has just been diagnosed with breast cancer. Her doctor tells her that while cancer is a…

Q: Why did things evolve to require two to reproduce? Wouldn't it be safer and more efficient if an…

A: The organism cannot live forever and to maintain the continuity of life, the organism needs to…

Q: The English peppered moth has two main colour variations, white and black. Black soot from pollution…

A: Introduction :- Any difference between individuals of a species or groups of organisms of any…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: There are various stated evolutionary mechanisms which are characterized based on how it affects the…

Q: If you wanted to produce a fly larvae with two head ends, which of the following would you do?…

A: The pattern formation in drosophila is a complex developmental event that is performed by…

Q: Identical twins each carry the same genome, but over time, can develop different phenotypes. How can…

A: Identical twins are formed as a result of the fertilization of a single egg. The zygote later splits…

Q: As pointed out in the section Evolution of the Y Chromosome, some researchers have predicted that…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: It would seem that you only need one set of instructions for your body to do all the jobs it needs…

A: Introduction A biological cell is a hub of biochemical activities. Numerous physiological and…

Q: Hox genes are activated in specific regions of the body (e.g. back of the head) and activate other…

A: Hox genes encode transcripts factors that are important for numerous developmental processes in…

Q: Of the following, which is the least plausible hypothesis for why natural selection has not…

A: Most human civilizations have male homosexual preference (MHP). Many evolutionary hypotheses have…

Q: geneticist use data from many generations. Why do you think they prefer to use fruit flies instead…

A: Fruit fly is common in homes , restaurants and wherever food is allowed to rot and ferment.  They…

Q: otamopyrgus antipodarum is a species of freshwater snail that has spread far beyond its native New…

A: The snails are mollusks that are classified under the large and diverse of class Gastropoda. The…

Parasitic infections

A parasite is an organism that lives in the body of another organism and obtains food at the expense of the host. There are two kinds of parasites they are internal and external. An internal parasite lives inside another organism and is known as endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite.