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zloy xaker [14]
3 years ago
8

1. Which statement best describes Mendel's experiments? sc.7.L.16.1

Biology
1 answer:
lara31 [8.8K]3 years ago
4 0

Answer:

B. He controlled pollination.

Explanation:

<em>The statement that best described Mendel's experiment is that </em><em>he controlled pollination.</em>

<u>Mendel carried out several experiments to study the pattern of inheritance of traits in pea plant. He cross bred phenotypically different pea plants and he was able to make certain conclusions based on how traits are inherited. He could only have been able to crossbreed plants by controlling pollination in the plant. </u>

<em>Mendel did not begin with hybrid plants. A hybrid plant is a product of crossbreeding two different organisms and often carry a mix of traits from the two organisms. Rather, Mendel started with pure breeding pea plants.</em>

<em>Mendel also observed more than one generations. He advanced several of the crossbreeding experiment to F2 generation before propounding the laws of genetics.</em>

<em>Mendel used a plant with short life cycle. They reproduce fast and as such, he was able to study different generations within a short period.</em>

The correct option is B.

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Answer:

Its energy fuel has ran out.

Explanation:

7 0
3 years ago
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nikitadnepr [17]

A.. Prokaryotic cells


7 0
3 years ago
(03.05 hc) the base pairs in a dna strand are held together with hydrogen bonds. if the two nitrogenous bases in each pair were
asambeis [7]

The cell would have to take in and use more energy in order to break the covalent bonds.

The correct option is B

Hydrogen bonds :

are the chemical mechanism that governs the complementarity of the bases of DNA. This correspondence is unique thanks to the geometry of the hydrogen donor atoms and the acceptors that form the bases.

The (hydrophobic) bases are stacked inside the double helix of DNA; their plane is perpendicular to the axis of the double helix. The outside (phosphate and sugar) is hydrophilic.

The hydrogen bonds between the bases of one strand and the bases of the other strand keep the 2 strands united.

One purine on one strand necessarily binds to a pyrimidine on the other strand. As a corollary, the number of purine residues is equal to the number of pyrimidine residues.

* A binds to T (by 2 hydrogen bonds).

* G binds to C (via 3 hydrogen bonds: more stable bond: 5.5 kcal vs 3.5 kcal).

What part of the DNA strand do hydrogen bonds hold together?

hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases, sugars, and phosphate groups (both within each component and between components). Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.

Learn more about DNA strand:

brainly.com/question/26466656

#SPJ4

7 0
2 years ago
In part A, you analyzed genes that contribute to two diseases. How can scientists use this information to develop new treatments
Sergeeva-Olga [200]

Answer:

Yes scientist will need to develop multiple treatments to control symptoms.

Explanation:

because if they only do one treatment it may not work for everyone because some people could be allergic to that one treatment that's why there are multiple treatments.

8 0
3 years ago
The cilia and mucus in the trachea sweep upward, moving the mucus toward the nose where it is sneezed out. ________
Mumz [18]
Hello there :)

I am quite sure this is a true/false question

This statement is false.
Yes, the cilia and mucus in the trachea does sweep upward, however, it moves the mucus towards the pharynx where it is swallowed not towards the nose where it is sneezed out.
5 0
3 years ago
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