The result of the process of meiosis is that it produces increased genetic diversity due to crossing over.
The correct option is C.
What is meiosis?Meiosis is a type of cell division that results in the production of gametes or sex cells. Hence. meiosis is a form of cell division that occurs only during sexual reproduction.
During meiosis, the cells of the parent organism which have a pair of chromosomes or diploid number or 2n of chromosomes divide to produce the gametes which have the haploid number or n number of chromosomes.
Hence, the sex cells or gametes produced can fuse to form a zygote that has a pair of chromosomes or diploid number or 2n of chromosomes.
The process of meiosis results in genetic variation as it allows for the crossing over of genes, such that the genes of the offspring show a variation to that of the parents as well as among the offspring.
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scientists believe that perching birds originated on the continents of australia and antarctica. how would these scientists explain the discovery of ancient perching bird fossils in africa?
The concept that dinosaurs were the direct ancestors of birds was backed by new research on ancient specimens as well as by field finds of dinosaur and early bird species.
Numerous traits and behaviours that distinguish modern birds were also present in dinosaur forebears. Theropods were a class of meat-eating dinosaurs from which birds descended. Although birds originated from little theropods rather than gigantic ones like Tyrannosaurus rex, they nonetheless belong to the same group as the dinosaur. The earliest fossilised bird remains date back 150 million years. Since they have a foot structure that enables them to grip branches, many bird species, including the majority of songbirds, are also known as "perching birds." The shape of one toe at the back of the foot works as a pincher, stabilising the perched bird.
The complete question is:
Scientists believe that perching birds originated on the continents of Australia and Antarctica. How would these scientists explain the discovery of ancient perching bird fossils in Africa? A) At one time, the climate in Earth was consistent throughout the planet. B) The fossils may have been moved by man, animals, or Earth’s constructive and destructive processes. C) The birds originated in Africa, but migrated with human populations to Australia and Antarctica to Africa. D) During the life of Pangea, Antarctica, Australia and Africa were neighboring
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Explain why the potential energy increases when ice starts to melt and becomes liquid water.
Enter your answer in the space below.
swer inside this box
Answer:
Explanation:
While the ice melts kinetic energy is being added to the particles. This breaks the bond and causes a change of state making the solid become a liquid.
Blood pressure is usually measured in the ________ artery with a sphygmomanometer.
sexual selection in a population choose one: a. can lead to physical differences between the males and females of a species. b. does not lead to evolution. c. reduces genetic variation in the population. d. always favors individuals with a higher survival potential.
The right response is option a, which states that morphological distinctions between males and females of a species can result from sexual selection in a population.
The tail of a peacock is a good illustration of partner selection. Peahens choose peacocks with huge, vibrant tails, which allows those peacocks to mate more frequently and produce younger ones. The genes for a long, colourful tail will be passed down from the father to the male peachicks, who will inherit these genes and develop comparable tails. There are two main factors that influence sexual selection. One is the preference of one sex (typically females) for members of the opposite sex who display particular features. The other is higher strength, which (often in males) results in better success in courting females.
So, we can conclude that option a, which claims that sexual selection can lead to physical differences between males and females of a species in a population, is the appropriate response.
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Our sense of taste originally was thought to involve only the following four
sensations
A) sweet, salty, starch, and bitter.
B) salty, fatty, bitter, and sweet.
C) sour, bitter, sweet, and starchy.
D) bitter, sweet, sour, and salty.
E) fruity, fatty, silky, and coarse.
Answer:
D) bitter, sweet, sour, and salty
Explanation:
Our sense of taste originally was thought to involve only the following four sensations: bitter, sweet, sour, and salty. These four sensations are the primary tastes that humans can detect, and they are thought to be the basis of our sense of taste. Other tastes, such as fat and umami (savory), are thought to be detected by other senses, such as touch and smell.
Answer: C
Explanation:
at the end of which week of the ovarian cycle should implantation occur (assuming there is an embryo)?
Answer:
first week
Explanation:
it takes 2 to 3 days tk get embryo
the dna with the gene of interest for a cloning experiment was left on the lab bench overnight (instead of storing it in the freezer). as a result, it was degraded. they didn't know the dna was left out and used it in the experiment. the plasmid, however, was stored correctly. the vector contains a gene for ampicillin resistance. after the transformation procedure, the bacteria were plated on media containing ampicillin. what results are expected from this faulty molecular cloning experiment?
In a molecular cloning procedure, the DNA to be copied is extracted from a target organism and split into smaller DNA fragments in a test tube using enzymes.
These pieces are subsequently joined with vector DNA to produce recombinant DNA molecules. After that, a host organism is given the recombinant DNA (typically an easy-to-grow,strain of E. coli bacteria). Recombinant DNA molecules will be duplicated alongside the host DNA in the resulting population of organisms. These are transgenic or genetically modified organisms because they have foreign DNA pieces. Thus, the term "clone" is frequently used to describe both the bacterial population and the recombinant DNA molecule. In actuality, molecular cloning refers to the scientific techniques utilised to put them together.The idea arose that different DNA sequences could be inserted into a plasmid and that these foreign sequences would be carried into bacteria and digested as part of the plasmid. That is, these plasmids could serve as cloning vectors to carry genes.
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Order the steps that occur as a protein is synthesized within a cell and finally excreted for use outside of the cell.
Answer:
1. The protein is synthesized within the cell using the information in the cell's DNA.
2. The protein is folded into its final shape.
3. The protein is transported to the cell membrane.
4. The protein is excreted from the cell, typically with the help of special protein-transporting molecules.
5. The protein is now outside of the cell and can be used for its intended purpose.
Explanation: