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Ket [755]
3 years ago
7

After observing the F2F2 generation, what conclusion did Mendel come to?

Biology
1 answer:
Zolol [24]3 years ago
6 0
In his experiment mendel first crossed tall and short peas plant and noticed that the F1 plants were all tall. in the second experiment he crossed the the F1 plants and noticed that short plants reappeared in the rate of 25% in F2 generation. in his third experiment he crossed he crossed F2 plants and noticed that when he crossed some tall plants with the shot plants the F3 generation contained short plant in frequency of 50%. after this observations mendel concluded that there were genes that could be only expressed in homozygous state but not in heterozygous state. these genes were later referred to as recessive alleles wheres the genes that prevented the expression of recessive genes were later referred to as dominant genes.     
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How would the solar eclipse be different if the moon was moved AWAY from the earth?​
GuDViN [60]

Answer:

The Sun is completely blocked in a solar eclipse because the Moon passes between Earth and the Sun. Even though the Moon is much smaller than the Sun, because it is just the right distance away from Earth, the Moon can fully blocks the Sun’s light from Earth’s perspective. Sometimes the Moon is far enough away that it doesn't create a total solar eclipse. However, once the Moon's growing orbit takes it approximately 14,600 miles (23,500 km) farther away from Earth, it will always be too far away to completely cover the Sun. That won't happen for a long time though.

Explanation:

https://spaceplace.nasa.gov/total-solar-eclipse/en/

8 0
3 years ago
The second messenger in the following G-protein-linked-receptor pathway is signal moleculeG protein linked receptor activated G
melamori03 [73]

Answer:

Answer is D - cAMP.

Explanation:

cAMP is a small molecule that functions as an intracellular signaling molecule - a second messenger. The first messenger would be the thing that activated the GPCR (e.g. a hormone). The GPCR is a signal transducer (converts extracellular signal to intracellular signal). Once activated, the GPCR activates  adenylate cyclase which can be called a signal effector - it is an enzyme that produces cAMP.

7 0
3 years ago
A currently popular diet is the Keto Diet in which followers attempt to eat a diet high in protein and fats (lipids), and low in
Nata [24]

Answer:

Meat, fish and eggs.

Explanation:

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4 0
2 years ago
Why might checking your reflex<br> health be important?
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Answer:

to see if there is any brain or nervous system problem

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2 years ago
Read 2 more answers
Which best describes an experiment?
AleksAgata [21]
A: In a lab a scientist measures the height of roses that received different fertilizers.

An experiment must include variables. The other three are just measurements, but since the scientist is varying the types of fertilizers used, this better describes an experiment. It is also done in a controlled environment (in a lab) which helps to eliminate other uncertainties.
8 0
3 years ago
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