What did Chargaff discover while studying bases in the DNA of organisms?

Answers

Answer 1

Answer: Chargaff found out that the ratios of thymine and adenine were equal and the ratios of guanine and cytosine were equal. He then created the Chargaff's rule states that double stranded DNA has a 1:1 ratio between pyrimidine and purine bases. With this, amount of guanine bases is equal to cytosine bases while the amount of adenine bases is equal to thymine bases.

Answer 2

Answer:

Answer: B. The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine

Explanation:

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Why have astronomers decided that pluto should be reclassified as a dwarf planet? what happens to most meteors when they enter earth's atmosphere?

Answers

There is a new standard of planets that the IAU set in 2006 and Pluto did not pass it. The new qualification is that a planet must be free of debris around it.

Most meteors are small enough to be burned by friction once it enters the Earth's atmosphere. They are also called 'shooting stars'.

The first mammals evolved during the _____ Period.Quaternary
Cambrian
Permian
Triassic

Answers

The first mamals evolved even before the dinosours during the Triassic period

they were during Triassic period

Three environmental factors that affect Salmonella growth and
survival.

Answers

Answer: Temperature, Humidity(can go hand in hand), pH, and sunlight to name a few

Final answer:

Three environmental factors that affect Salmonellagrowth and survival are temperature, moisture, and pH level.

Explanation:

Salmonella is a type of bacteria that can cause food poisoning in humans. It is commonly found in raw or undercooked poultry, eggs, and other food products. The growth and survival of Salmonella are influenced by various environmental factors. Three important factors that affect Salmonella growth and survival are temperature, moisture, and pH level.

Temperature: Salmonella bacteria thrive in temperatures between 40°F (4°C) and 140°F (60°C). This temperature range is known as the danger zone for bacterial growth. At temperatures below 40°F, Salmonella growth slows down, while temperatures above 140°F can kill the bacteria.

Moisture: Salmonella requires a moist environment to grow and survive. High levels of moisture provide favorable conditions for bacterial growth. Dry environments, on the other hand, can inhibit Salmonella growth.

pH Level: Salmonella bacteria prefer a slightly acidic to neutral pH range of 4.0 to 7.0. Extreme pH levels, either highly acidic or highly alkaline, can inhibit the growth of Salmonella.

Understanding these environmental factors is crucial in preventing the growth and spread of Salmonella in food and other environments.

Learn more about factors affecting salmonella growth and survival here:

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Where is chlorophyll found in green algae?In the cytoplasm
In chloroplasts
In the nucleus
In ribosomes

Answers

in chloroplast.......

in chloroplast

brainliest plzzzz

What specifically is this biochemical used for, and how is it broken down during digestion?

Answers

digestion occurs in the stomach and the duodenum through the action of three main enzymes: pepsin, secreted by the stomach, and trypsin and chymotrypsin, secreted by the pancreas.During carbohydrate digestion the bonds between glucose molecules are broken by salivary and pancreatic amylase.The digestion of certain fats begins in the mouth, where short-chain lipids break down into diglycerides because of lingual lipase. The fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver enables the breakdown of fats into fatty acids.DNA and RNA are broken down into mononucleotides by the nucleases deoxyribonuclease and ribonuclease (DNase and RNase) that are released by the pancreas.

Myth: An organism's kingdom only describes physical characteristics.

Answers

Answer:

No it does not because an organism's Kingdom describes a set of Organisms. The organisms in each Kingdom. There are six of them. They are Archaebacteria, Eubacteria, Fungi, Protista, Plants and Animals

Explanation:

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