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lisabon 2012 [21]
3 years ago
14

hypothesis that guided some biochemical research in the 1930s was: “Citric acid plays an important role in the breakdown of carb

ohydrates in organisms.” What research question motivated this hypothesis? a. How do cells reproduce? c. How do plants use sunlight to live? b. How does food yield energy? d. How is genetic information transferred?
Biology
1 answer:
aev [14]3 years ago
5 0

Answer:

b. How does food yield energy?

Explanation:

The main question is how energy is produced from food such as carbohydrates, fats and proteins etc. First the carbohydrate is converted into glucose molecule and then glucose is absorbed by the cell and is broken down in the mitochondria of the cell with the addition of oxygen and generate energy in the form of adenine tri phosphate. All the scientists wants to know that how a food is converted into energy.

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Who or what comprised 3 or the parts: all living things are made of cells, cells are the basic unit of life, all cells come from
Sveta_85 [38]

Answer:

Cell theory

Explanation:

Cell theory is a universal theory proposed by three scientists namely: Theodor Schwann, Mathias Schleiden and Rudolf Virchow in the 1830's. The cell theory compose of three components:

- All living things are made up of one or more cells.

- Cells are the basic and fundamental unit of life

- All cells emanate from pre-existing cells.

Based on this question, these three components are what makes up the CELL THEORY.

8 0
3 years ago
A daughter cell that matures to the inside of the vascular cambium becomes ______, and a daughter cell that matures to the outsi
melomori [17]

A daughter cell that matures to the inside of the vascular cambium becomes<u> secondary xylem</u> and a daughter cell that matures to the outside of the vascular cambium becomes <u>secondary phloem.</u>

<u />

  • The cambium divides its cells to create secondary xylem and phloem. As secondary phloem and xylem tissue builds up, the stem becomes thicker and develops wood and bark.
  • The kind of xylem produced by secondary growth is known as secondary xylem. In contrast, during primary growth, the primary xylem develops.
  • As a result, lateral growth, as opposed to vertical growth, is connected with the secondary xylem, as opposed to the primary xylem.
  • The procambium, which is found between the xylem axis and the phloem pole, develops into the cambium in the root.
  • A pattern resembling the arrangement of secondary stem is produced when xylem forms in the core and phloem on the perimeter of secondary development.

learn more about vascular cambium here: brainly.com/question/859907

#SPJ4

5 0
2 years ago
Read 2 more answers
Omg i am sooooooooooooooooooooooo bored
d1i1m1o1n [39]

Am bored~, am bored~~, am bored~ , am bored~, am bored~~~~~~, don't know what to do, cause am flipping bored~~~~. Feel you too. * sad noises*

8 0
2 years ago
Read 2 more answers
Why does sexual reproduction produce more genetic variability in a population than asexual reproduction?
musickatia [10]
Because with sexual reproduction the offspring is getting Genetic material from both the mother and father but during asexual reproduction the offspring only gets genetic material from its one and only parent
3 0
3 years ago
If A/A ⋅ B/B is crossed with a/a ⋅ b/b and the F1 is testcrossed, what percentage of the testcross progeny will be a/a ⋅ b/b if
Alex787 [66]

Answer:

a) 25%; b) 50%; c) 45%; d) 38%

Explanation:

<h3 /><h3>a) Unlinked genes</h3>

A/A B/B X a/a b/b

F1: A/a B/b

Testcross A/a B/b X a/a b/b

The homozygous recessive individual only produces <em>ab</em><em> </em>gametes.

The F1 produces four types of gametes (each of them with a frequency of 1/4):  <em>AB</em>, <em>Ab</em>, <em>aB </em>and <em>ab</em>.

25% of the progeny will be a/a b/b.

<h3>b) Completely linked genes</h3>

AB/AB X ab/ab

F1: AB/ab

Testcross AB/ab X ab/ab

The F1 produces only two types of gametes, the parentals (each of them with a frequency of 1/2):  <em>AB</em> and <em>ab</em>.

50% of the progeny will be ab/ab.

<h3>c) 10 m.u. apart</h3>

AB/AB X ab/ab

F1: AB/ab

Testcross AB/ab X ab/ab

The F1 produces four types of gametes, the parentals <em>AB</em> and <em>ab </em>and the recombinants <em>Ab</em> and <em>aB</em>.

Since the genes are 10mu apart, 10% of the produced gametes will be recombinant and 90% will be parentals. Since there are two types of parental gametes, each of them has a frequency of 45%.

45% of the progeny will be ab/ab.

<h3>d) 24 m.u. apart</h3>

This is very similar to c).

Since the genes are 24mu apart, 24% of the produced gametes will be recombinant and 76% will be parentals. Since there are two types of parental gametes, each of them has a frequency of 38%.

38% of the progeny will be ab/ab.

5 0
3 years ago
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