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Eduardwww [97]
2 years ago
9

Hydrogen has three isotopes 1H, 2H, and 3H. What is the difference between these three isotopes?

Biology
2 answers:
RideAnS [48]2 years ago
4 0
The number of neutrons
and the mass number

aliya0001 [1]2 years ago
4 0

Answer:

the differences are: molecular weight, neutron number, melting point and boiling point.

Explanation:

Isotopes are elements that have the same number of protons. There are 3 known hydrogen isotopes, the propium (H, which is hydrogen itself), deuterium (2H, commonly called D) and tritium (3H, commonly called T), which, although they have very similar characteristics, have some characteristics. different, such as molecular weight, neutron number, melting point and boiling point.

  • 1H: has a molecular weight of 1,0079 g; It has a neutron number of zero, a melting point of 20.3 K and a boiling point of 100 ° C.
  • 2H: has a molecular weight of 2.0141 g; It has a neutron number of 1, a melting point of 23.6 K and a boiling point of 101.4 ° C.
  • 3H: has a molecular weight of 3.0164 g; has a neutron number of 2, melting point equal to 25.1 K and a boiling point of 102.9 ° C.
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Answer:

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Experiments by Marshall Nirenberg and Heinrich Matthaei in 1961, began to decipher genetic codes and state about the 64 triplet codons in the genetic code by using mRNA from DNA to translate into specific amino acids in our biological system.

Their experiment helps to decode or crack the code of DNA by establishing the first codon out of 64 triplet codes which are  UUU codes for phenylalanine. In the future, the same approach is used to find other amino acids.

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No stripe on the head (H) is dominant, a black stripe on the head is recessive. If dad's genotype is Hh, what are the odds that
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The chance of the offsprings with stripe on head is 50%.

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<h3><u>Explanation:</u></h3>

Here according to the figures, the male is the brown one which has no stripe on his head as mentioned, and the female is the pink one who has a stripe on her head. The gene for the head stripe is denoted by H.

So the genotype of the father which is given as Hh. He is heterozygous.

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So the genotype of the offsprings are Hh and hh as 50% each.

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