What characteristics of Earth results in different seasons over a period of a year?

1 answer:

7 0

The tilt of earths on its axis is what makes the sun heat up different parts of the earth at different times, thus making wind, and making different weather parents.

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In genetic engineering, the structures called “sticky ends” result from what process? the results of mRNA after post-transcripti

AlexFokin [52]

Answer:

Option). the uneven cutting by most restriction enzymes

Explanation:

Sticky ends can be defined as over-hanged DNA fragments of unequal length, having a terminal portion with unpaired nucleotides. These fragments are formed by a staggered cut on DNA molecules wit the help of restriction endonuclease enzymes.

These ends have complementary nucleotide bases that allow complementary base pairing between bases, and thus, known as sticky ends.

Thus, the correct answer is 'last option.'

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3 years ago

4. Larger squirrels can carry larger acorns to their burrows, and they outcompete smanet Oy

REY [17]

"Directional selection" will most likely occur.

Answer: Option B

Explanation:

Directional selection or positive selection is an organic selection mechanism in population genetics, this scrutiny is an intense phenotype is preferred over certain phenotypes, allowing the intensity of the allele to migrate over moment towards that phenotype.

For an instance directional selection are fossil statistics showing that the scale of black bears in Europe diminished throughout ice ages interglacial phases however grew at each glacial period. A further example is the scale of the beak in a finch group.

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3 years ago

In radishes, red and white are pure-breeding colors, while hybrids are purple. If a red radish is crossed with a white radish, w

zlopas [31]

The answer is 1 red radish, 2 purple radishes, and 1 white radish

Let R allele be dominant allele over r allele. The genotypes and phenotypes will be as following:
RR - red radish
rr - white radish
Rr - purple radish

Parental generation: RR x rr
F1 generation: Rr Rr Rr Rr

Since the F1 generation self-pollinates, we have the situation:
F1 generation: Rr x Rr
F2 generation: RR Rr Rr rr

Punnet square:
 Rr 
R | r
R | RR | Rr
Rr r | Rr | rr

So, there will be 1 red radish (RR), 2 purple radishes (Rr), and 1 white radish (rr)

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3 years ago

Picture a person standing with a drawn bow and arrow. He is aiming it at a bull's eye target. What type of energy is being descr

vladimir1956 [14]

Supposing that there is a man or a person standing with a drawn bow and an arrow,he is aiming it at a bull's eye target. The person has a potential energy then. Potential energy is an energy at rest. However, the bow and the arrow too has a potential energy, but when released, it turns out to have the kinetic energy, or energy in motion.

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3 years ago

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PLEASE HELP QUICK!!!! WILL MAKE BRAINLIEST!!!

DochEvi [55]

Answer:

D. sister chromatids; centromere

Explanation:

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3 years ago

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