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Verizon [17]
3 years ago
14

Only 3% of the Earth's water is fresh and two thirds of that is polluted. True or false ?

Biology
2 answers:
Yuri [45]3 years ago
5 0

Answer:

It's

Explanation:

ycow [4]3 years ago
3 0

Answer:

i think its True? Have a nice day

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Explanation:

Los síntomas del chancro incluyen una o más ulceras y dolor en los nódulos linfáticos, es decir en el área donde las piernas y el tronco del cuerpo se unen. La úlcera empieza como un granito doloroso que se llena de pus y luego se convierte en una llaga o úlcera.

8 0
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describe why it is essential for DNA to replicate prior to cell division. What would happen otherwise
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Because the cells always diverted when break down
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Unlike in prokaryotic cells, replication in eukaryotic cellsA. starts from a single point.B. can start in many different places
drek231 [11]
B. can start in many different places on a sequence at the same<span> time.</span>

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3 years ago
The brain's _____ nucleus regulates the body's circadian rhythms.
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4 0
3 years ago
Several organisms have a homologous protein (inherited from a common ancestor) that is highly similar at the amino acid level. Y
8_murik_8 [283]

Answer:

The correct answer is: C. third nucleotide position.

Explanation:

  • Genes located on the chromosomes encodes for proteins.
  • A Gene is made up of a  Deoxyribonucleotide (DNA) sequence which is transcribed into the messenger Ribonucleotide (mRNA) sequence by the help of RNA polymerase.
  • This mRNA sequence is further translated into the amino acid sequence, that folds to form the functional protein, by the help of the Ribosome.
  • The Ribosome reads the mRNA sequence in the form of triplets (three nucleotide together) and each such triplet nucleotide codes for an amino acid.
  • Each such triplet nucleotide is known as a Codon.
  • The Genetic Code is a table which represents the  amino acid encoded by each codon.
  • However, the Genetic Code is degenerate in nature. This means that one amino acid can be coded by more than one codon.
  • This is because, among the the three nucleotide positions in a codon only the first two determine the specificity of the amino acid while the third nucleotide, also called the wobble nucleotide, is not specific. Presence of any nucleotide in the third position of the codon will not alter the amino acid encoded by the codon.
  • In the given question, organisms producing homologous protein have similar amino acid sequence but they vary in the corresponding nucleotide sequence of the gene which codes for the homologous protein.
  • This is because at the nucleotide level the variation lies in the wobble nucleotide position that occupies the third position in the codon.
8 0
3 years ago
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