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Murljashka [212]
3 years ago
9

Human blood type AB is a trait that is the result of what pattern of inheritance?

Biology
1 answer:
maksim [4K]3 years ago
3 0

Answer:

If an individual inherits one or two more forms from A from their mother and one or two more forms B from their father, they have blood type AB.

Explanation:

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What is true about DNA mutations?
JulsSmile [24]

Answer:

B

Explanation:

Crossing over is the process involved during meiosis of two chromosomes sharing genetic information with each other from each parent. This happens so the two daughter cells or sister chromatids have a variety of genetic information and so they are not completely identical. This leads to genetic diversity or variation.

6 0
2 years ago
Why is the question of whether the injuries came from a stone or steel weapon important? How could scientists distinguish betwee
Papessa [141]

It is important in determining whether injuries/death was an accident or purposeful, and if purposeful, who, how and why did someone do it. They determine the weapon through the ligature marks left, the shape, force and impact of the injury, the location of the injury, and by analysing any fragments and trace evidence left on the wound

4 0
3 years ago
Who discovered the monomers of nucleic acids? Phoebus Levene James Watson, Francis Crick, and Rosalind Franklin Friedrich Miesch
Vlad1618 [11]

Answer:

Phoebus Levene( 1896, Sagor Russia - Septemeber 1940, New York)

Explanation:

These were developed by Phoebus Aaron Theodor Levene ,he was a russian who studied medicine, with keen interest in organic chemistry.

He migrated to the US in 1891, and started practising medicine  in 1892.Due to his strong interest in research he combined research(1894) in  molecular structure of sugars with medical practice,But this was cut short when he contracted tuberculosis.

Between 1896- 1906,he collaborated with many nucleic acids  and protein exoperts  e.g Albrecht Kossel and Emil Fischer to  wok on the structure of DNA.And headed the Rockefeller Institute for Medical Research.

He works included :the isolation of  Nucleotide-monomers of DNA

:the isolation of D-ribose sugar from ribonucleic acid molecule.(RNA)

Discovery of 2-deoxyribonucleic ,

How the components of Nucleotide(phosphate group,sugars, and organic bases) combined to form nucleotide, and how the latter undergo condensation reaction to form DNA.

8 0
3 years ago
Read 2 more answers
The hypothesis that, when life originated on Earth, a macromolecule other than DNA served in the role of information storage, an
Andreas93 [3]

Answer:

RNA world hypothesis.

Explanation:

RNA is present as the genetic material in some viruses only. RNA is produced from the template DNA by the process of transcription and helps in the protein gene expression.

According to RNA world hypothesis, RNA is considered to be the first genetic material as it has the ability to store the genetic material. The oxyribose sugar makes the RNA more reactive than the DNA molecule. The RNA also has the ability to work enzyme known as ribozyme. Hence, RNA has the ability to store the information and acts as catalyst.

Thus, the answer is RNA world hypothesis.

4 0
3 years ago
Why do oceanic plates subduct continental plates
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<span>Because they are composed of material that is denser than that of the continental crust. As such oceanic crust is less buoyant than continental crust and so where oceanic crust collides with continental crust, the oceanic rust tends to be forced beneath the continental crust.</span>
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