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Verdich [7]
3 years ago
7

Insertion and deletion mutations are said to cause shifts in the reading gram of the mRNA. Substitution mutations do not cause t

hese so called frame shifts. Explain why insertion and deletions are frameshift mutations, using the terms reading frame, codons, and amino acids
Biology
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Explanation:

A frameshift mutation  is an insertion or deletion in a sequence of DNA which disrupts the way the code is read. It occurs when the codons undergo a disruption through the deletion or insertion of one or multiple nucleotides (given that the number removed or added are not multiples of 3) - this alters the open reading frame; the amino acids produced through translation simply occur in a different sequence.

Further Explanation:

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

  • somatic: these only occur within certain cells, and arise from environmental factors such as UV light
  • hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly  

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If a group of one certain species are living in the same area they are a population. The same goes for humans, we are the same species and when we live in the same area we say we are part of a population. That’s why you would hear things like “the population of massachusetts is 2million” or whatever it is.
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3 years ago
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The conservation of energy is a _______ because it is has been demonstrated without exception under certain stated conditions.
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Is a scientific theory

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Tratando-se sobre atividades aeróbias, segundo Cooper (1972), qual das alternativas abaixo não está correta? a) Aumento da efici
olya-2409 [2.1K]

Answer:

Diminuição do colesterol bom (HDL), aumento do colesterol mal (LDL)

Explanation.

Esto debe revertirse, debe ser una disminución del colesterol malo y un aumento del colesterol bueno.

Básicamente, el ejercicio aumenta el HDL y reduce los triglicéridos. En condiciones normales, los ejercicios aeróbicos no reducen el LDL. Sin embargo, cuando se combina con cambios en la dieta y una pérdida de peso bien controlada, el efecto combinado podría reducir el LDL.

En las condiciones estándar, el ejercicio recomendado por semana es de 150 minutos de ejercicios suaves o 75 minutos de ejercicio vigoroso por semana.

Por lo tanto, cuando se calcula por semana, esto sería un promedio de 20 minutos de ejercicio por día.

Andar en bicicleta, caminar, hacer jardinería y aeróbicos acuáticos son ejemplos prácticos de ejercicios leves o moderados que podrían aumentar el HDL. Sin embargo, el baile aeróbico, el trote y el salto de cuerda son ejemplos de ejercicios vigorosos que, cuando se combinan con la dieta y la pérdida de peso, conducen a una disminución del LDL.

This should be reversed, it should be a decrease in bad cholesterol and an increase in good cholesterol.

Basically, exercise boosts the  HDL and lower triglycerides. Under normal conditions, Aerobic exercises do not reduce LDL. However, when combined with dietary changes and well-monitored weight loss the combined effect could lower LDL.

Under the standard conditions, the recommended exercise per week is 150 minutes of mild exercises or 75 minutes of vigorous exercise per week.

Therefore, when calculated per week this would be an average of  20 minutes of exercise per day.

Biking, walking, Gardening, and water aerobic are practical examples of mild or moderate exercises that could boost HDL. However, Aerobic dancing, jogging, and rope jumping are examples of vigorous exercises which when combined with dieting and weight losses leads to a lowering of LDL.

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3 years ago
cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you noti
Margaret [11]
<h2>Genetic code is (nearly) universal in evolution</h2><h3>Explanation:</h3>
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  • This is because a genetic code shared by diverse life forms gives significant proof to the regular starting point of life on Earth. That is, the numerous species on Earth today likely developed from a tribal living being in which the genetic code was at that point present. Since the code is fundamental to the capacity of cells, it would will in general stay unaltered in species across ages, as people with critical changes may be not able to survive.
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3 years ago
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Strike441 [17]

Answer:

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Explanation:

The muscular rigidity and spasms of tetanus are caused by tetanus toxin(tetanospasmin) which is produced by  Clostridium tetani, an anaerobic bacillus whose spores survive in soil and cause infection by contaminating wounds.

Tetanus Neurotoxin ( TeNT)binds to the presynaptic membrane of the neuromuscular junction is internalized and transported  retroaxonally to the spinal cord.The  spastic paralysis induced by the toxin is due to the blockade of neurotransmitter release from spinal inhibitory interneurons.

The tetanus shots is a safe and effective way to prevent tetanus and other dangeroud diseases occuring in most cases.

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