Answer:
He discovered that certain traits were linked to the X chromosome
B. red giant stage
C. planetary nebula stage
D. black dwarf stage
Answer: B. red giant stage
When the sun runs out of fuel-hydrogen, its atmosphere expands and it becomes a red-giant star. The Sun would leave the main-sequence stage and enter the red-giant stage in which huge pressure generated in its core pushes the atmosphere outwards making it expand and nuclear fusion reaction of heavier nuclei starts. The end stage of Sun would be formation of a white dwarf.
Thus, from the given options, correct answer is B. red giant stage
The final stage in the sun's life cycle is the black dwarf stage. The black dwarf stage is proposed to be the final stage in the life cycle of a white dwarf, after it has exhausted its nuclear fuel and undergone gravitational collapse.
The correct option is D.
The life cycle of a star like the sun can be divided into several stages. The specific sequence of stages depends on the mass of the star. However, for a star like the sun, the stages are as follows:
Main Sequence: The sun is currently in the main sequence stage, where hydrogen fusion occurs in its core, producing energy.
Red Giant: As the sun exhausts its hydrogen fuel, it will enter the red giant stage. During this stage, the sun's core contracts while the outer layers expand, causing the sun to become larger and cooler.
Planetary Nebula: In the next stage, the sun will shed its outer layers, forming a glowing shell of gas and dust called a planetary nebula. This process exposes the core of the star.
White Dwarf: After the planetary nebula stage, what remains of the sun's core will collapse inward due to gravitational forces. Black Dwarf: The final stage in the sun's life cycle is the black dwarf stage.
Hence , D is the correct option
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Answer: Mutations are the most fundamental way to add new genes to a gene pool.
Explanation:
A mutation is either permanent or temporary changes that may occur in the DNA sequence of the organism that makes up a gene which is the functional unit in the organism. These mutations will add genetic variations in the gene pool of the population. Those mutations which are hereditary which means they can be transmitted from parents to offsprings are called as germline mutations.
Acquired (somatic) mutations are those mutations which occur's during a persons life. These mutations occur due to ultraviolet radiations. These mutations occur in the somatic cells not in the germ cells therefore, these cannot be passed from one generation to the next.
Answer:
c
Explanation:
hope this helped
Diseases are believed to continue in human populations originally because of a balance among mutation, genetic drift, and natural selection, with alleles that provide to infection preceded by mutation, directed in part by stochastic genetic drift, but eventually excluded from the population by cleaning selection.
Those most susceptible are more likely to get complications and die or be less fit. If the sensitivity were genetic fewer survivors would presumably have some descendants. Those with better resistance would rise in proportion to those with comparatively lacking immunity all other things being alike. That change in the ratio of genetic types would be evolution by natural selection. Modern medicine involves that a bit by usually curing most diseases.
One evening while Farquhar and his wife were sitting on a rustic bench near the entrance to his grounds, a gray-clad soldier rode up to the gate and asked for a drink of water.
A. No service was too humble for him to perform
B. no adventure too perilous for him to undertake
C. a part of the frankly villainous dictum
D. a gray-clad soldier rode up to the gate
The phrase that highlights the use of everyday characters in realism is; "No service was too humble for him to perform".
The term realism has to do with accepting a situation the way it is and developing capabilities to deal with it. It also connotes an accurate representation.
In this case, the phrase that highlights the use of everyday characters in realism is; "No service was too humble for him to perform".
Learn more about realism:brainly.com/question/2832348
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