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ikadub [295]
3 years ago
9

Question 4 of 25

Biology
1 answer:
Valentin [98]3 years ago
4 0

Answer:

B. Cellulose

Explanation:

Polysaccharide are substances that contains many units of monomers called MONOSACCHARIDE. They are carbohydrate molecules consisting of very long chains of monosaccharides like glucose, galactose etc.

An example of molecule that forms from strong chains of polysaccharides is CELLULOSE, which consists of long chains of glucose units linked together by B-1,4-glycosidic bonds. Cellulose is the most abundant polysaccharide on Earth found in plant cell walls.

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Mendel's law of segregation predicts the following specific phenotypic ratios among the F, and Fa progeny from crosses between t
aleksandrvk [35]

Answer:

C. Fi 1:0, F2 3:1

Explanation:

Firstly, Mendel's law of segregation states that the alleles of a gene will randomly separate into gametes during gamete formation. In this case involving a single trait, hence, a single gene. Mendel crossed two purebreeding plants i.e. homozygous plants that produced different phenotypes for the same gene. He obtained his offsprings which he called F1 offsprings. He realized that all the F1 offsprings expressed only one phenotype. For example, when he crossed homozygous tall (TT) and short (tt) plants, he got F1 offsprings that were all tall.

He then self-crossed these F1 offsprings to produce a F2 offsprings that had a phenotypic ratio of 3:1 i.e. 3tall, 1short plant. He concluded that the alleles of the single gene had segregated into the gametes but one allele was capable of masking the expression of another, as seen in the heterozygous F1 offsprings that were all tall (Tt).

Hence, he obtained a 1:O ratio for his F1 offsprings then a 3:1 ratio for his F2 offsprings.

8 0
3 years ago
1. Which macromolecules were present in the unknown solution? In the albumin?
Wittaler [7]
The macromolecule that is present in albumin would be proteins. Also, it has traces of lipids and carbohydrates. The albumins are a family of globular proteins, the most common of which are the serum albumins. All the proteins of the albumin family are water-soluble.
7 0
3 years ago
1. Which sentence includes a metaphor?
Sonja [21]

Answer:

Aunt Lenora's voice was a choir of angels.

Explanation:

a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.

7 0
3 years ago
Read 2 more answers
Why is the recovery period different between fit and unfit person?
Ira Lisetskai [31]
A fir person can recover faster than an unfit person because his body is better suited against injuries.
8 0
3 years ago
Why are decomposers important to the environment?
Simora [160]

Answer:

They provide nutrients for the growth of plants  

Explanation:

When plants and animals die, they become food for decomposers like bacteria, fungi and earthworms. Decomposers or saprotrophs recycle dead plants and animals into chemical nutrients like carbon and nitrogen that are released back into the soil, air and water.  

Good luck on your test

6 0
3 years ago
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