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attashe74 [19]
3 years ago
7

Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in

Biology
2 answers:
olga nikolaevna [1]3 years ago
6 0

Answer:

A. Silent, The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a silent mutation.

Explanation:

In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.

In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.

For the other options:

  • <u>Missense</u>: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs.
  • <u>Nonsense</u>: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete.
  • <u>Insertion</u>: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.
fenix001 [56]3 years ago
5 0

Answer:

Silent

Explanation:

Edge 2021

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3 years ago
At one time, biologists thought that fungi were merely forms of plants that had lost their chlorophyll and had returned to sapro
Drupady [299]

Answer & explanation:

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3 0
3 years ago
The diagram below shows a particle of food being moved along the human digestive tract by alternative waves of relaxation and co
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A  Kidney/s: They are bean-shaped organs that filter waste products and urea from the blood. The filtering units of kidneys are called nephrons. Along with water, these waste products and urea are what makes up urine.

B. Ureters - 
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4 0
3 years ago
Porque los alimentos se oscurecen?(platanos, palta, manzana, papa, etc) respondan pls✋
inn [45]

Answer:

Una enzima es una sustancia, generalmente una proteína, en la célula de un organismo que acelera las reacciones químicas.

Durante el pardeamiento enzimático, una enzima llamada fenolasa y otro compuesto orgánico que se encuentra en las células de la fruta llamados fenoles pasan por una reacción de oxidación cuando se exponen al oxígeno. La fenolasa regula la reacción, convirtiendo los fenoles en melanina.

Por lo general, las enzimas de la fruta están encerradas en tejido. Las enzimas están metidas en sus células, trabajando para madurar la fruta. Pero cuando esas células se descomponen, ya sea por una causa externa como si alguien muerde o corta la fruta o por causas naturales como el envejecimiento, las enzimas se liberan y entran en contacto con el oxígeno, lo que desencadena la reacción química y hace que la fruta se vuelva marrón.

5 0
3 years ago
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