BIOLOGY HIGH SCHOOL

What is a variation needed for a species to evolve?

Answers

Answer 1
Answer: A variation that is needed is 
reproduction

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How is human impact on the tundra and the rainforests similar?

Answers

The human impact on the tundra and the rainforests have been negative to say the least. The destruction of wild habitat and increased pollution due to logging, mining etc have negatively affected the animals living in that region. Deforestation and habitat loss due to farming and oil exploration has increased the pollution level in these regions.

Which event is likely to trigger succession?

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A forest fire would trigger secondary succession

What is the opposite strand if one starnd of DNA is CAGFTTACG

Answers


From the rules of base pairing, we know that Cytosine always pairs with Guanine and Thymine always pairs with Adenine. These four bases are the only ones used as building blocks of nucleic acids DNA and RNA.

Adenine is abbreviated as A

Thymine is abbreviated as T

Cytosine is abbreviated as C 

Guanine is abbreviated as G

 There is no base abbreviated as F in nucleic acids so if we omit it, the sequence in the question should read CAGTTACG.  The complimenting  strand of the DNA molecule would therefore  read  GTAATGC

What would influence a species' physical appearance

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The genes contained in the species' chromosomes would influence a species' physical appearance, would it not?
The alleles that species gains from both parents helps determine what that species physical appearance (also known as the phenotype) would look like.
Hope this explanation helped you. :)

What is the specific site for transcription and translation in the cell?

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The specific site for transcription is nucleus, and the specific site for translation is cytoplasm.
Transcription is a process of copying DNA into messenger RNA (mRNA). Since DNA is in the nucleus, transcription must occur in the nucleus. Free mRNA leaves the nucleus and enters the cytoplasm. There, mRNA serves as a template for protein synthesis. This process is called translation and it occurs in the cytoplasm.

A Punnett square is used to determine the A. result of meiosis. B. result of segregation. C. probable outcome of a cross. D. actual outcome of a cross.

Answers

Answer:

C. Possible outcome of a cross

Explanation:

A Punnett square is a tool used in genetics to predict the probable outcomes of a cross between two organisms. It is a visual representation of the possible combinations of alleles from each parent that could be passed on to their offspring. The Punnett square is used to calculate the probability of each genotype and phenotype in the offspring, based on the alleles of the parents. It does not determine the actual outcome of a cross, but rather predicts the probabilities of different outcomes.
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