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3 years ago

What did Mendel's cross pollination of pea plants prove

Biology

2 answers:

DaniilM [7]3 years ago

5 0

I'm pretty sure that the answer is D.

pashok25 [27]3 years ago

4 0

Answer: The correct answer is- D certain factors are dominant and other factors are recessive.

Mendel was interested in knowing the offspring that is produced from the cross pollination (that is from two different plants) as he wanted to study different traits of pea plant.

For doing so, he first removed the anthers of one plant (to prevent self pollination) and then transferred the pollens of one plant into the stigma of another plant.

When he allowed the cross pollination of purebred pea plant with other plant, he observed that some factors are dominant (such as tall height of pea plant, which masks the expression of recessive factors) and other are recessive (such as dwarf height of pea plant).

Thus, option D) is the right answer.

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Qué estructuras protegen y nutren al feto

vazorg [7]

Es un saco con paredes finas que rodea al feto durante el embarazo. El saco contiene líquido amniótico (líquido producido por el feto) y el amnios (membrana que cubre el lado fetal de la placenta), que proteje al feto de lesiones y ayuda a regular su temperatura.

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3 years ago

A plastic bottle contains 32.5 L of gas at a pressure of 45.7 kPa and

Monica [59]

Answer:

Final pressure, P2 = 362.26 kPa

Explanation:

Given the following data;

Initial volume = 32.5 Liters

Initial pressure = 45.7 kPa

Final volume = 4.1 Liters

To find the final pressure, we would use Boyle's law;

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

$PV = K$

$P_{1}V_{1} = P_{2}V_{2}$

Substituting into the equation, we have;

$45.7 * 32.5 = P_{2} * 4.1$

$1485.25 = 4.1P_{2}$

$P_{2} = \frac {1485.25}{4.1}$

$P_{2} = 362.26$

Final pressure, P2 = 362.26 kPa

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3 years ago

What prevents self-actualization from being more common?

son4ous [18]

Due to arising conflict in self-image and others.

In Psychology, self-actualization is process where an individual reaches and achieves their full potential and capabilities as a person. In Maslow's model, this is considered to be the highest step in the hierarchy.
Now, most individuals do not achieve this because of conflict that occurs within the self and with other people.

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3 years ago

Bicarbonate ions which migrate from red blood cells into the surrounding fluid are replaced by _____ ions.

Mrac [35]

Answer: chloride ions

Explanation:

This movements of chloride ions into the blood plasma to replace the outward diffused bicarbonate ions is called chloride shift, It occurs to restore the blood ionic balance altered by the bicarbonate ions diffusion out into plasma

The same amounts of Chloride ions replaced the lost amount of bicarbonate ions

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3 years ago

genetic engineering might allow parent to 'design' their children before birth are you in favor of this? why or why not?

ludmilkaskok [199]

Answer:

I think it is quite an interesting idea to allow parents to 'design' their children before birth. Because some people have preferences and those preferences are taken very seriously. I wouldn't want to have a baby boy, I would want a baby girl. Although, this could be a waste of money and time because this might be one of the things that are better not to be fixed even if it isn't broken. But, this can also be good, if you desperately need a child with specific features, this can help. Even if I can't seem to find a reason where a child is supposed to have specific features.

Explanation:

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3 years ago