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Rama09 [41]
3 years ago
14

Someone please help me

Biology
1 answer:
lina2011 [118]3 years ago
7 0
Sound waves cannot travel through a vacuum. This is because sound waves move by actually compressing molecules--therefore in a vacuum it would be impossible for sound to travel. This is also why no sound can be heard in space.
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If each parent has two sets of genes and chromosomes, why do their offspring receive only one set from each parent?
bulgar [2K]

Answer:

Explanation:

porque una persona con dos alelos normales presentará un fenotipo normal, mientras que si las dos copias del gen son el alelo mutado que producen una enfermedad, el fenotipo expresará los síntomas característicos de esa enfermedad.

8 0
3 years ago
The A159E mutation causes an A amino acid to be replaced with an E amino acid (their structures are shown here). What type of mu
valentinak56 [21]

Answer:

Substitution

Explanation:

Mutations can simply be defined as change in the structure of a gene. Mutation can be of different types. These include, but not limited to:

  • Insertion: This involves the insertion of extra base pairs into a DNA
  • Deletion: Loss of DNA section
  • Substitution: When a nucleotide base gets substituted with another base.

<em>Substitution of a base can lead to coding of different amino acid and hence, protein. It can also lead to coding of the same amino acid, otherwise known as silent mutation. Base substitution can also lead to the amino-acid-coding codon becoming a stop codon, leading to an incomplete protein.</em>

The correct answer is substitution.

5 0
3 years ago
Three years ago there were only 60 lions living on a savannah in Africa. Now there are 120 lions living there. What must the lio
mr_godi [17]
Well lions already have a large variety of prey that it feeds on , however they do not eat the entire animal, they are going to have to adapt so that the can eat other things rather that just the main meat of their prey, They may need to expand where they live and be a little more resourceful
6 0
3 years ago
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A cell requires a constant energy supply to
Y_Kistochka [10]
I’m pretty sure the answer would be C
Since the mitochondria is the power house and the chloroplast is where photosynthesis takes place
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3 years ago
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What is the name of the enzyme found in tears to fight infection?
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Lysozyme is the enzyme in tears
8 0
2 years ago
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