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Tema [17]
2 years ago
6

Which tropism causes the roots of seedlings to grow downward?

Biology
1 answer:
Ludmilka [50]2 years ago
5 0

Answer:

geotropism

Explanation:

they go towards the gravitational force

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What is used for building structures in the body they can also be enzymes?
Anna35 [415]

Answer:

The correct answer is - proteins.

Explanation:

Enzymes are made up of the long chains of amino acids that are linked by the peptide bonds that make a polypeptide chain known as proteins. Proteins are the building block of the enzyme and the building of thevarious structures in the body.

Enzymes are made up of two protein that also plays as the role of a biological catalyst whereas protein only plays role in forming different structure and performing functions.

6 0
3 years ago
If cysteine is specified by the codons UGC and UGU, what are the anticodons present on tRNAs that carry cysteine?
MrRissso [65]

Answer:

AGC and ACA

Explanation:

Codons and anticodons are present in the form of triplets.Codons are present on the coding strand of DNA and on mRNA and their anticodon is present on transfer RNA.When codon present on mRNA binds to its anticodon on tRNA then appropriate amino acid is carried by tRNA on ribosomes for protein synthesis. For example, AGC and ACA anticodons are present on tRNA that binds to UGC and UGU on mRNA for amino acid cysteine.

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2 years ago
The scattering of a stream of positively charged particles when striking a thin film of gold confirms that
egoroff_w [7]
This was Ernest Rutherford’s gold foil experiment. He used radioactive alpha particles as a part of the experiment and discovered that there was a densely packed, positively charged nucleus in atoms with electrons that were spread out in spaces between nuclei.
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The first line of defense involves skin.

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