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4 years ago

Lyme disease is a bacterial infection transmitted to humans from ticks.

1 answer:

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Lyme disease is caused by the bacterium Borrelia burgdorferi and is ... to humansthrough the bite of infected blacklegged ticks I hoped i helped

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The only people with Rh negative blood are people who have inherited two recessive alleles for this trait. But some people who a

zubka84 [21]

The difference is due to the inheritance pattern. Blood type needs two recessive alleles to express Rh-. Color-blindness needs only one.

<h3>What are the blood type and Color-blindness inheritance patterns?</h3>

⇒ Blood type is coded by a diallelic Rh gene that expresses complete dominance.

The allele Rh+ dominates over the allele Rh-.

Genotyopes and Phenotypes are as follows,

Individuals Rh+Rh+ express the possitive phenotype

Individuals Rh+Rh- express the possitive phenotype

Individuals Rh-Rh- express the negative phenotype.

To express Rh-, a person must inherit two recessive alleles from their parents.

⇒ Color-blindness is an X-linked condition coded by a recessive allele.

As most sex-linked genes, it is transmitted together with the X chromosome.

The phenotype depends on the number of recessive alleles and the sex of the person.

Genotyopes and Phenotypes are as follows,

X⁺X⁺ women have normal sight.

X⁻X⁻ women are completely color-blinded

X⁺X⁻ women are partially color-blinded.

X⁺Y Men are not color-blinded

X⁻Y Men are color blinded.

In this case, only one recessive allele is enough to express the affection.

In conclusion, Blood type needs two recessive alleles to express Rh-. Color-blindness needs only one recessive allele.

You can learn more about the inheritance pattern at

brainly.com/question/25303949

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2 years ago

Would the correct protein be made if TRNA did not work correctly?

galina1969 [7]

Answer:

The short answers are Yes, it's random, and Yes, it "waits" for some time.

Different tRNA's just float around in the cytoplasma, and diffuse more or less freely around. When one happens to bump into the ribosome, at the right spot, right orientation, and of course which has an anticodon matching the codon in frame of the mRNA being translated, it gets bound and takes part in the synthesis step that adds the amino acid to the protein that is being synthesized.

The concentration of the various species of tRNA is such that translation occurs in a steady fashion, but there is always some waiting involved for a suitable tRNA to be bound. In that waiting time, the ribosome and mRNA stay aligned - that's because the energy that is required to move the to the next position is delivered as part of the same chemical reaction that transfers the amino acid from the tRNA to the protein that is being synthesized.

I'm not entirely sure what happens if there is significant depletion of a particular species of tRNA, but I think it's likely the ribosome / RNA complex can disassemble spontaneously. But spontaneous disassembly can't be something that occurs very easily after translation was initiated, since we would end up with lots of partial proteins which I expect would be lethal very soon.

(Can't know for sure though, but it would be very hard to set up an experiment to measure just what will happen and even if you got a measurement it would be hard to figure out how it applies to normal, living cells. I can't imagine tRNA depletion occurs in normal, healthy living cells.)

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3 years ago

List and describe three factors that could possibly affect catalase activity.

Pachacha [2.7K]

Catalase is an enzyme which is present in every living organism that is exposed to oxygen. Catalase's activity is affected by temperature, pH and the concentration of substrate. In catalase's case, the substrate is the hydrogen peroxide. If any of these factors change, the effectiveness of the catalase to catalyze the decomposition of hydrogen peroxide will deteriorate. If the temperature and pH change, the shape of the enzyme will change as well. This denaturation of the enzyme will obstruct the hydrogen peroxide molecules to fit in the catalase's active site.

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3 years ago

What are scientist doing to Pork to make it a GMO?

Helga [31]

Answer:

They use a gene modification technique called CRIPSR-CAS9. The pigs have been given a gene that allows them to better regulate their own body temperature, whereby they burn fat, or at which animals consume their own fat.

Explanation:

British and Chinese scientists explained that they conducted the study by adding a mouse version of the UCP1 gene used for porcine embryos, which is used to regulate body temperature characteristic of most mammals, but not ordinary pigs.

It is problematic for pigs to maintain a stable body temperature, and this is especially complicated in pigs that are cold in the winter months because they have not been able to "store" fat.

Inserting the UCP2 gene could solve this problem.

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3 years ago

_________________ results in the formation of two new cells.

Jobisdone [24]

Answer:

mitosis

Explanation:

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3 years ago

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