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OLEGan [10]
2 years ago
9

Which of the following molecules does NOT contain a B-1,4 glycosidic linkage?

Biology
1 answer:
Lesechka [4]2 years ago
5 0

Answer:

Chitin, Cellulose and Peptidoglycan (B, C and D)

Explanation:

Both chitin and cellulose are composed mainly of glucides, bound by glycosidic bonds of the Beta 1-4 type. This is largely why they cannot be digested by most non-herbivorous animals.

As for peptidoglycans, it is a net. It is a molecular framework present in bacteria that has β1-4 and α1-4 bonds in different proportions.

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3 0
3 years ago
Whether a fly has white or red eyes is due to alleles at a single locus. It is thus a _______ or _______ trait.
maxonik [38]

Answer:

The correct answer is "qualitative, discrete".

Explanation:

A qualitative or discrete trait is defined as a characteristic that have no intermediate features, and is often the result of genetic alleles at a single locus. For instance, if the form the seeds of pea could be either round or wrinkled, but not with intermediate forms. This is the case of the fly that has white or red eyes, but does not have pink eyes or other colors in between.

8 0
3 years ago
In snapdragon plants, the gene for red petals (R) is incompletely dominant to the gene for white petals (r).
Lelechka [254]
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4 0
3 years ago
Read 2 more answers
How are archaea and bacteria alike?
Ostrovityanka [42]

Answer:

The correct answer would be b. Their cells are small and lack a nucleus.

Both archaea and bacteria are prokaryotic organisms that is, they both are devoid of a nucleus and other membrane-bound organelles such as mitochondria, chloroplast et cetera.

They also share a similarity in terms of shape and size of the cells. Both of them are unicellular in nature and can not be seen by naked eyes.

They show variations in their genetic and biochemical ways. For example, archae contains three RNA polymerases whereas bacteria contain a single RNA polymerase.

Their cell wall also show variation in composition. For example, a bacterial cell wall contains peptidoglycans, whereas archae cell wall does not.

Thus, we can say that archae and bacteria are similar in a manner that their cells are small and lack a nucleus.

3 0
3 years ago
Read 2 more answers
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