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Mazyrski [523]
3 years ago
15

What would happen if you wouldn't do experiments in science

Biology
1 answer:
Lady bird [3.3K]3 years ago
3 0
You would do book work like every other day
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Darker skin is more prevalent in high-UV areas. Dr. Nina Jablonski proposed a hypothesis to explain the selective pressure for d
skad [1K]

The answer is; the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer

In Africa, due to its equatorial latitude location, receives direct sunlight at more or less 90 degrees most of the year. These highly concentrated rays increase the UV radiation exposure  that can cause damage to cell DNA. Selection pressure, therefore, favored individuals with high melanin concentrations that protect against UV. Therefore population evolved towards high melanin densities in the skin.


7 0
3 years ago
What would be the anti codon in the tRNA for the amino acid trp (tryophan)?
MrRissso [65]
How do the genes in our DNA influence our characteristics? For example, how can a gene determine whether a person is an albino with very pale skin and hair? Basically, a gene is a segment of DNA that provides the instructions for making a protein, and proteins influence our characteristics. This chart describes how two different versions of a gene result in two different versions of a protein which in turn can result in either normal skin and hair color or albinism. DNA  Protein  Characteristic   Version of the gene that provides instructions to make normal protein enzyme  Normal enzyme that makes the pigment molecule in skin and hair  Normal skin and hair color Version of the gene that provides instructions to make defective enzyme  Defective enzyme that does not make this pigment molecule  Albinism (very pale skin and hair) A gene directs the synthesis of a protein by a two-step process. The first step is transcription of the gene in the DNA. Transcription produces a messenger RNA (mRNA) molecule. The second step is translation of the mRNA molecule. Translation produces a protein molecule. During transcription, the sequence of nucleotides in a gene in the DNA is copied to a corresponding sequence of nucleotides in mRNA. During translation, the sequence of nucleotides in the mRNA determines the sequence of amino acids in the protein. After translation, the sequence of amino acids in the protein determines the structure and function of the protein. Differences in protein function can influence characteristics such as normal skin and hair color vs. albinism. 
6 0
3 years ago
The seeds are plant tissue and plants are able to perform both cellular respiration and
katrin [286]

Respiration is process where plant produce heat  

Explanation:

Respiration is essential component for every living thing this. Respiration help living thing get energy and stay alive. In plant cellular respiration is used to convert nutrient which is present in soil and this process can be understand as a cellular activity. In plants seeds play vital role.

The basic difference between respiration and photosynthesis is in respiration plant consume nutrient for survival and alive plant cell but in photosynthesis plant is able to make their own food.  In respiration only plant produce heat energy

<u>The formula of Respiration: </u>

Oxygen + glucose – Carbon dioxide + water + heat energy  

<u>The formula of Photosynthesis </u>

Carbon dioxide + Water + Sunlight – Oxygen + glucose  

7 0
3 years ago
If a chromosome is like a book, then a gene is like__?
valentina_108 [34]

Answer:

Answer;

A specific sentence.

If a chromosome is like a book, then a gene is like a specific sentence.

Explanation:

A chromosome is a structure that is made of a chemical known as deoxyribonucleic acid, or DNA as well as protein. Chromosomes are found in the nucleus of cells. Chromosomes contain many genes. A gene is a molecular unit of heredity, it is a segment of DNA that provides the code to construct a protein.

Chromosomes are made from DNA. Genes are short sections of DNA. Genetically identical cells are produced by a type of cell division called mitos

8 0
3 years ago
Read 2 more answers
What element is found in all organic molecules? oxygen nitrogen phosphorus carbon
kvasek [131]
I just looked it up, it's carbon!
4 0
3 years ago
Read 2 more answers
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