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Schach [20]
3 years ago
15

A molecule that functions in maintaining and/ or reproducing life is called a what

Biology
1 answer:
Mazyrski [523]3 years ago
6 0
A molecule that functions in maintaining and/or reproducing life is called the molecule of life. The four molecules of life are proteins, carbohydrates, lipids, and nucleic acids. Each of the four groups is vital for every single organism on Earth. Without any of these four molecules, a cell and organism would not be able to live. They structurally or functionally for cells and mostly they are important in both ways. 
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In cucumbers, dull fruit (D) is dominant over glossy (d) fruit, orange friut (R) is dominant over cream fruit (r), and bitter co
stiv31 [10]

Explanation:

  • Dull fruit (D) is dominant over glossy (d) fruit.
  • Orange friut (R) is dominant over cream fruit (r).
  • Bitter cotyledon (B) is dominant over non-bitter cotyledons (b).

The three genes are independent.

<h3>a)</h3>
  • A plant homozygous for dull, orange fruit and bitter cotyledons has the genotype <em>DDRRBB</em><em>.</em>
  • A plant homozygous for glossy, cream fruit and non-bitter cotyledons has the genotype <em>ddrrbb</em>.

100% of the F1 will have dull, orange fruit and bitter cotyledons and will be heterozygous for all genes: <em>DdRrBb</em>.

<u>The F2 will have 8 possible phenotypes:</u>

  • 27 D_R_B dull, orange fruit and bitter cotyledons
  • 9 D_R_bb dull, orange fruit and non-bitter cotyledons
  • 9 D_rrB_ dull, cream fruit and bitter cotyledons
  • 3 D_rrbb dull, cream fruit and non-bitter cotyledons
  • 9 ddR_B_ glossy, orange fruit and bitter cotyledons
  • 3 ddR_bb glossy, orange fruit and non-bitter cotyledons
  • 3 ddrrB_ glossy, cream fruit and bitter cotyledons
  • 1 ddrrbb  glossy, cream fruit and non-bitter cotyledons

<h3>b)</h3>

An F1 plant is crossed with a plant that has glossy, cream fruit and non-bitter cotyledons.

<h3>DdRrBb x ddrrbb </h3>

The F1 individual can produce 8 types of gametes: DRB, DRb, DrB, Drb, dRB, dRb, drB and drb. The cream fruit and non-bitter cotyledons individual can only produce drb gametes. This cross also produces a progeny with the following genotypes and phenotypic proportions:

  • 8 DdRrBb dull, orange fruit and bitter cotyledons
  • 8 DdRrbb dull, orange fruit and non-bitter cotyledons
  • 8 DdrrBb dull, cream fruit and bitter cotyledons
  • 8 Ddrrbb dull, cream fruit and non-bitter cotyledons
  • 8 ddRrBb glossy, orange fruit and bitter cotyledons
  • 8 ddRrbb glossy, orange fruit and non-bitter cotyledons
  • 8 ddrrBb glossy, cream fruit and bitter cotyledons
  • 8 ddrrbb  glossy, cream fruit and non-bitter cotyledons

4 0
3 years ago
Which of the following caused
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Answer:

A. The ways that the continents fit together

Explanation:

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What is the equation that calculate growth rate in a population including information on migrations
ANTONII [103]

Answer:

Population Growth Rate

It is calculated by dividing the number of people added to a population in a year (Natural Increase + Net In-Migration) by the population size at the start of the year. If births equal deaths and there is zero net migration, the growth rate will be zero.

Explanation:

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Quantitative data

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Consider the following food chain: Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. What wi
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If the grasshopper is removed, the snakes will die, because the snakes have nothing to eat, and whatever eats snakes will die, and so on.

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