Answers
Answer: a. mutation
Explanation:
A mutation is a change or alteration and a process that occurs in the DNA sequence of the organism. This happens due to the mistake in the DNA replication process or because of the environmental factors for example exposure to the UV radiation or due to smoking. These mutations either favors the survival of the organisms or they are lethal for the organisms.
Related Questions
Bacteria are grown in a petri dish. One side of the dish is sprayed with an antibiotic. After a week, the number of bacteria colonies are counted on each side. What is the independent and dependent variable?
Phage lambda lytic versus lysogenic phases are controlled by two proteins, Cro which leads to lysis and CII which leads to lysogeny. __________ nutrient concentrations in the gut promote E. coli production of proteases that cleave __________ and activate __________. A. low; CII; lysis B. high; CII; lysis C. low; Cro; lysogeny D. high; Cro; lysogeny
Many scientists say that there is a good reason for gaps in the fossil record. Can you explain why some extinct animals and plants were never fossilized?
In a 10 m2 ecosystem, there are 60 raccoons. What is the population density of raccoons?
Answers
Answer:
Option B)
Explanation:
A moon is a celestial body that revolves around a planet.
The others are wrong because, a planet orbits around the sun, not the sun orbiting the planet.
A meteor does not have a fixed orbit, and asteroids orbit around the star near it, in our case, the asteroid belt orbits the sun.
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OB. The number of alleles a parent has
C. The likelihood of an event occurring
O D. The most likely possible outcome
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The likelihood of an event occurring is described as probability and is denoted as option C.
What is Probability?
This is referred to a branch of mathematics which deals with calculating how likely something occurs.
A common example is the likelihood of a parent giving birth to
offspring with certain types of trait etc.
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A controversial issue of toxicology is the use of chemical additives in food.
Food additives are substances intentionally added to foods for the purpose of preserving, enhancing or modifying their physical, chemical, biological or sensory properties without impairing their nutritional value. However, it is necessary to control the use of these substances, as ingestion of these substances may pose health risks.
Additives are found in most processed foods, such as cookies, breakfast cereals, soft drinks, jellies, artificial juices, candies and a host of other foods in the diet of Brazilians, especially children.
Thus, its consumption should be controlled, as the health risk is confirmed by a sum of scientific studies. The three main ills associated with excessive consumption of these substances are cancer, food hypersensitivity and attention deficit hyperactivity disorder.
Some audiences are even more vulnerable to consumption, such as pregnant women, the elderly, people with little food and children under three years. In the case of children the attention should be greater because the digestive and urinary systems are not yet fully prepared to process these substances.
The more industrialized the product, the more chemical additives it will have. The ideal is to prepare fresh products at home. However, as is often not possible, it is important that you read the label and choose the products with the least additives.
o disturb the ecosystem because another species will not be able to replace it.
o not affect the ecosystem because another species will not be able to replace it.
disturb the ecosystem because another species will take its place.
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Answer:
disturb the ecosystem because another species will not be able to replace it.
Explanation:
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400x
Is the answer to this question.
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Threonine contains two functionalgroups: an amino group (-) and a hydroxyl group (-OH).
These functionalgroups are responsible for the molecule's properties and reactivity. The amino group is part of the amino acid structure, while the hydroxyl group is characteristic of alcohols.
The carboxyl group (-COOH) is another functionalgroup present in threonine. It is acidic in nature and can donate a proton, making threonine capable of acting as a weak acid.
The hydroxyl group (-OH) attached to the side chain of threonine is an alcohol functional group. It provides threonine with unique chemical properties.
Thus, threonine contains two distinct functional groups: an amino group (-) and a hydroxyl group (-OH).
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Answer:
It contains Amino group NH2, Carboxylic Acid group COOH, also Hyroxyl group OH