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romanna [79]
3 years ago
7

What do X and Y chromosomes affect? O A. Whether someone is a female or male O O O B. How many parents a person has. C. The shap

e of a person's thumb. O D. Whether earlobes are attached.​
Biology
1 answer:
babymother [125]3 years ago
3 0

Answer:

b is right

Explanation:

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Starch, cellulose, dextran, and glycogen are polysaccharides. How are they similar? To what are their different properties due?
daser333 [38]

Answer:

similarity

Starch, cellulose,dextran and glycogen are all polymers of glucose

differences

                monomer/glucose     glycosidic bond    branching

1.starch              α glucose          1-4 and 1-6               branch and unbranced

  amylose                                       1-4                          unbranched

  amylopectin                               1-4 and 1-6              branched

2. dextran          α glucose          1-6                           branched

3. cellulose        β glucose           1-4                          unbranched, linear        

4. glycogen       α glucose           1-4 and 1-6              branched (shorter

                                                                                     branches than starch)

Enzyme: amlase acts on starch and cellulase acts on cellulose as they are specific for their substrates.

Explanation:

Starch: Consists of both branched amylopectin and unbranched amylose

Enzymes: Enzymes are specific as the gulcose molecule in starch is α and in cellulose is β which differ in their position of hydroxyl groups at anomeric carbon, their structures differ so they form different bonds. Active sites of enzymes can act only on specific bonds a sthey can fit to their specific substrates.

3 0
3 years ago
What are on chromosomes in the nucleus of a cell? Mutations , traits, alleles, genes
Aloiza [94]
Genes must be right anwer
6 0
3 years ago
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Most cell membranes are composed principally of
Maru [420]

Answer:

DNA and ATP 2. proteins and lipids 3. chitin and starch ... Singer proposed the fluid mosaic model of the cell membrane in which the cell membrane consists of a double lipid layer with proteins embedded in it to act as name tags or to aid in movement of larger molecules across the membrane.

Explanation:

3 0
2 years ago
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Where does the process of transcription occur?
Anit [1.1K]

Answer:

D

Explanation:

5 0
2 years ago
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Which of the following organelles would be affected first if there were no lipids present to allow nutrients to enter the cell a
Volgvan
I think the answer is b
4 0
2 years ago
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