Explain why a control group is important to a controlled experiment

Biology

1 answer:

sashaice [31]3 years ago

4 0

A control group is important to a controlled experiment because it is used in an experiment to establish its validity.

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Samples as small as a few skin cells can potentially contain DNA. T/F

Travka [436]

<u>Answer</u>: True

<u>Explanation</u>:

DNA (Deoxyribonucleic acid) is the genetic material present inside the nucleus of all eukaryotic cells.
Samples as small as few skin cells also contain DNA and the presence of DNA in skin cells is often used to identify the DNA of a person in a crime scene.
Further, with the use of PCR technology, the small amount of DNA obtained from skin cells can be amplified into many copies.
Therefore, the given statement is true.

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3 years ago

Write the changes occurring in the passage through the alimentary canal as a person has ingested roti and dal as a part of his m

svet-max [94.6K]

Answer:

A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal. Answer: ... The saliva contains an enzyme salivary amylase (ptyalin) which converts starch in roti into maltose, isomaltose and small dextrins called a-dextrin.

Explanation:

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An artificial method of dispersal seed is (1) Explosion 2) Parachute 3) Censer mechanism 4) Introduction

bogdanovich [222]

Answer:

Explosion

Explanation:

Deliberate seed dispersal also occurs as seed bombing.

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3 years ago

A cell with 36 chromosomes undergoes meiosis, how many daughter cells are created?

Novosadov [1.4K]

Answer:

hey!!

Explanation:

The answer is 36

Mitosis is a cell division that produces 2 cells daughter that are genetically identical to both the other daughter cell and the parent cell. The process where the parent cell first duplicates its genetic material, then it divide so that both daughter cell receive the exact number and same DNA.

Therefore, the answer is 36, only 36 matches the description of genetically identical cells.

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Explain the role of lysozyme and the freezing of the cells play in the isolation the gfp from the other bacterial proteins.

Serggg [28]

The answer is it will allow the water to expand and break the cell wall. Lysozyme, one of the most powerful natural antibacterial and antiviral compounds known to man, has been used in foods and pharmaceuticals for over three decades as it naturally inhibits the growth.

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3 years ago

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