Which of the following is NOT evidence for Endosymbiotic Theory?
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The statement that mitochondria and chloroplasts cannot survive outside of the cell is not a supporter of the endosymbiotic theory. So the correct option is A.
What is the endosymbiotic theory?
It's possible that eukaryotic cells originated when several cell types fused to form one. They started coexisting in what are known as symbioticpartnerships. The endosymbiotic theory describes how this may have occurred. One creature that resides inside of another is known as an endosymbiont. Your own cell and all other eukaryotic cells are animals formed of other species' components.
Both the chloroplast and the mitochondrion are organelles that were formerly free-living cells. They were prokaryotes that were ensconced within other cells (host cells). They may have become a part of the other cell by being eaten (a process known as phagocytosis), or they could have been parasites living inside the host cell.
The inner cell lived and flourished with the host cell rather than being ingested by or destroying it. It resembles a landlord and a renter in certain ways. The organelle pays rent by producing energy that the host cell may consume, and the host cell offers a cozy and secure home.
The organelle and the hostcell have developed together throughout time as a result of this long-ago event. The two are now inextricably linked. Even while they now work as a single organism, if we look closely, we can still see traces of the organelles' former lives as free-living entities.
Therefore the correct option is A.
Read more about the endosymbiotic theory, here
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Answer:
mitochondria and chloroplasts can not survive outside of the cell
Explanation:
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Which of these is a correct statement about RNA molecules?A) The shape of RNA is often described as a double helix. B) RNA was first discovered by James Watson and Francis Crick. C) RNA contains the genetic blueprint for making protein molecules. D) RNA molecules transmit the genetic information from the nucleus to the
What are three different defects that could be responsible for malfunctioning lysosomes?Select the three correct answers.A) a defect in the synthesis of the glucose-6-phosphate dehydrogenaseB) a defect in the mannose-6-phosphate receptor in the Golgi apparatusC) a defect in the releasing small molecules from digested materials into the cytosolD) a defect in a hydrolytic enzyme that breaks down polysaccharideE) a defect in the process of adding a mannose-6-phosphate signal to lysosomal hydrolasesF) a defect in the mannose-6-phosphate receptor in the mitochondria
thymine
cytosine
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Answer:
The right option is (A).
Explanation:
The RNA gets its information from DNA to synthesise the proteins. It is different from DNA also due to the difference in one nitrogen basis as uracil. The thymine, the nitrogen basis that is only present in DNA is replaced with uracil to form RNA coding. The uracil also contains the same features as thymine has in DNA strains. Uracil makes a double H-bond with the adenine but does not contain CH4 group which is present in thymine.
DNA has the nitrogenous bases of adenine (A), thymine (T), cytosine (C) and guanine (G), while the only differing nitrogenous base in RNA is uracil (U), which replaces thymine (T).
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Answer:
waterway has its own particular characteristics related to water flow, velocity, and quantity.
Altered water ways or hydrology defines the variation in such characteristics including water flow. Water flow naturally depends on the climate and landscape ( valleys, mountains and flood plains).
There are several examples of people changing the way water flows such as construction of a dam or weir and the addition of a culvert or pipe. Dams are use to control the flow of water and through culvert or pipe, the flow or direction can be changed.
Changes in vegetation and landscape by people also affects the flow of water as well.
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Moons like ours are commonplace among the planets and are drawn into orbit by strong gravitation on smaller bodies.
Identical forms of elements on both the Moon and Earth lead scientists to believe that Earth and Moon were formed.
That Earth collided with a Mars-sized body forming the Moon.
The Moon was originally a dwarf planet captured by the Earth's gravitational pull billions of years in the past.
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Answer:
C
Explanation:
Final answer:
The most accepted theory on the Moon's origins, the Giant Impact Hypothesis, proposes that a Mars-sized body known as Theia collided with Earth approximately 4.5 billion years ago. This collision ejected material into Earth's orbit, which then formed the Moon.
Explanation:
The most recent and widely accepted theory about the origins of the Moon, known as the Giant Impact Hypothesis, suggests that approximately 4.5 billion years ago, a protoplanet roughly the size of Mars, known as Theia, collided with the nascent Earth. This violent collision resulted in a massive amount of matter ejecting into the Earth's orbit, eventually coalescing and forming what we now know as the Moon. This theory is supported by several pieces of evidence, such as the similar composition of certain isotopes on both the Earth and Moon and the Moon's low density compared to Earth, which suggests it came from the Earth's outer crust.
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