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suter [353]
3 years ago
7

Nuclei with a higher than desired neutron-to-proton ratios tend to undergo which type of decay?

Biology
1 answer:
alexira [117]3 years ago
8 0
Hey there!

Nuclei with a high neutron-to-proton ratio usually undergo a beta emission.

Beta emissions, unlike some other types, is radioactive decay throughout these particles, and can have half lives like other types of exponential (usually) decay. Neutrino, along with <em>beta rays,</em> are coming from, or emitted from the nucleus - hence the name.

Hope this helps!
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Explain Mendel's law of independent assortment and how the 9:3:3:1 phenotypic ratio among the F2 of a dihybrid cross provides ev
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Answer:

Explanation:

Mendel's law of independent assortment state that two different genes assort independently in gamete formation.

To reach this conclusion, one has to do a dihybrid cross. This means that two genes responsible for different traits need to be analyzed at the same time.

1) Starting with a <u>parental generation of a cross between two pure lines</u> (homozygous for both genes) <u>with different traits</u>, a plant with yellow and round seeds (YYRR) and another with green and wrinkled seeds (yyrr). <u>The F1 will be phenotypically homogeneous (</u>yellow and round)<u>, and genotypically heterozygous (</u><u>YyRr</u><u>)</u>.

2) If the individuals from the F1 are crossed with one another,  we have to do a Punnett Square to determine the phenotypic ratio of the F2.

  • If the genes assort independently, the F1 individuals will produce their different gametes with the same probability. Each possible gamete will appear in a 1/4 proportion: YR, Yr, yR, yr.
  • The 9:3:3:1 ratio is a result of analyzing the possible phenotypes that result from the dihybrid cross.

See the attached image for an illustration of the crosses in each generation and the Punnett Square.

4 0
2 years ago
1. The region north of 66½° N latitude is the Arctic Circle. Use the simulator to describe the length of the day during winter,
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<span>Winter the further north you go, the more night time you get. Equator is still more or less half and half.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
8 0
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