If you had shown mitosis in a plant cell instead of an animal cell, which feature would you have to change ?

In pea plants, round (R) is a dominant trait, and wrinkled (r) is a recessive trait. Which combination would result in wrinkled

Artyom0805 [142]

The answer is rr because if it were "Rr" it would be round. Dominant always exceeds the recessive. so if both traits were recessive, it would be recessive. so "rr" is your answer

4 0

3 years ago

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Which of the following explains why water is a good solvent for polar and ionic compounds?

Anni [7]

Hi there!

Electronegativity is the concept of how likely an atom is to attract the shared molecules in one of these bonds to itself. We know the molecule water is made up of two hydrogens and one oxygen. The electronegativity of hydrogen is 2.2, and oxygen 3.4. An ionic bond needs at least a difference in electronegativity of 1.6. As the difference is less than that, we can say that water is a covalent molecule. This then wipes out choice B, because it is not ionic, and C, as we have seen it is actually covalent.

Now, we can see the difference in electronegativity between oxygen and hydrogen is still 1.2. This means that while it is not at the point for there to be an ionic bond, there is still a difference in attraction, where the electrons will tend to favor the oxygen more and 'hang around it' more. As electrons are negatively charged, this means that the oxygen will gain a slightly negative charge. This then makes the molecule polar, because it now has a charge within the molecule. This means we have our answer, choice D.

In terms of hydrophobic molecules - they tend to be ones without a charge. (If you're interested in this kind of stuff, I'd search hydrophobic up, and possibly also look into hydrogen bonds).

Hope this helps! Feel free to ask me any other questions you have about this specific problem.

6 0

3 years ago

Question 9 of 10

Marina CMI [18]

Answer:

B

Explanation:

6 0

3 years ago

"Scientists will often grow bacteria in prepared petri dishes. In some experiments, the petri dish will also contain paper disks

emmasim [6.3K]

I think you forgot to post the picture needed for the question. However, after some research I found it online. The picture should show a circle with areas for bacteria growth, area of no growth (ZOI) , and antibiotic disc A. The diameter in mm of the ZOI for disk A will be 13 mm.

6 0

3 years ago

A plant heterozygous for stature and fruit flesh color is pollinated by a plant that is homozygous recessive for stature and fru

GenaCL600 [577]

Answer:

How could the same information still be found with a homozygous dominant donor? Using a homozygous recessive donor is more efficient because the genotype of the unknown parent can be determined in a single generation. If a homozygous dominant donor was used, the unknown genotype could still be determined.

Explanation:

hope this help

3 0

3 years ago