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Stels [109]
2 years ago
10

Are genetic mutations avoidable? Explain.

Biology
1 answer:
max2010maxim [7]2 years ago
5 0

Answer:

Mutations happen in our cells all the time. It's actually how all humans grow and change. The vast majority of mutations are harmless. Thus, they aren't avoidable.

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How many dna molecules are present in a synapsed pair of homologous chromosomes?
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Answer:

The answer is 4

Explanation:

The answer is 4 because we are talking about pairs of homologous chromosomes and there  two copies  are held together and they are located in the centromere.

Synapsis is two homologous chromosomes pairing. During the event of <em>meiosis </em>homologous chromosomes are being pared but then also separated because of reducing the genetic content of the resulting haploid cells.

7 0
3 years ago
Which molecule (carbohydrate, lipid, protein) supplies more ATP one broken down?
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The number of ATP molecule depends on type of molecule broken down carbohydrate most commonly broken down to make  ATP
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Which of the following terms describes a lipid molecule that has only single
schepotkina [342]

Answer:

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3 years ago
Levene made which contribution to our understanding of DNA structure? a. He determined that the nucleus contains DNA. b. He dete
Stels [109]

Answer:

The correct answer is  b. He determined that DNA contains four nitrogenous bases.

Explanation:

Levene was an American biochemist who studied the structure of DNA in the early 1900s and in 1920 he found that DNA consists of four nitrogenous bases that are Adenine, Guanine, Thymine, Cytosine.

He also found deoxyribose sugar and phosphate group and said that nucleotide is the basic unit of DNA which contains a ribose sugar with attached nitrogenous base and phosphate group.

He also concludes that an equal amount of adenine, guanine, thymine, and cytosine makes the DNA which is now known as tetranucleotide hypothesis. So the correct answer is b. He determined that DNA contains four nitrogenous bases.  

8 0
3 years ago
Corals are related to other commonly found marine animals. What other animals are found in the phylum Cnidaria?
KIM [24]

Answer:

i believe the answer is jellyfish im sorry if its wrong

Explanation:

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