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zepelin [54]
3 years ago
6

Cellulose is made by combining which of the following molecules together?

Biology
2 answers:
saw5 [17]3 years ago
6 0
A carbohydrate that is a polymer composed of glucose units and that is the main component of the cell walls of most plants. It is insoluble in water and is used to make paper, cellophane, textiles, explosives, and other products. (hello pls give me brainliest would appreciate)
WITCHER [35]3 years ago
4 0

Answer:

Cellulose is a polysaccharide composed of a linear chain of β-1,4 linked d-glucose units with a degree of polymerization ranged from several hundreds to over ten thousands, which is the most abundant organic polymer on the earth.

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Which are characteristics of epithelial cells? Select two options.( Answer Needed ASAP)​
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Two genes determining a trait In primroses, the dominant allele of gene K is necessary to synthesize blue flower pigment. Blue p
viktelen [127]

Answer:

The ratio of blue to white offspring in the progeny is 4 blue : 12 white.

Explanation:

<u>Available data:</u>

  • The dominant allele K is necessary to synthesize blue flower pigment
  • K is inhibited by the dominant allele D
  • Plants with the genotype K- D- will not produce pigment (and their flowers will be white)

Cross: testcross for (Kk Dd) plants

Parental)   KkDd     x     kkdd

Gametes) KD   kD   Kd   kd      

                kd   kd   kd   kd

Punnet square)        KD        Kd       kD       kd

                      kd     KkDd   Kkdd   kkDd   kkdd

                      kd     KkDd  Kkdd   kkDd   kkdd

                      kd     KkDd   Kkdd   kkDd   kkdd

                      kd     KkDd   Kkdd   kkDd   kkdd

  • Whenever D is present, it inhibits the expression of the K gene, so every plant with the dominant D allele will be white. This plants´ genotype is kkD- or K-D-.
  • Whenever D is absent and K is present, every plant with genotype K-dd will be blue.
  • The recessive form for K and D genes will express white-flowered plants, with genotype ddkk

F1) Progeny genotype: 4/16 KkDd, white-flowered plants

                                      4/16 Kkdd, blue-flowered plants

                                      4/16 kkDd, white-flowered plants

                                      4/16 kkdd, white-flowered plants

     The ratio of blue to white offspring in the progeny is 4 blue : 12 white.

     Blue-flowered plants: 4 Kkdd

     White-flowered plants: 4 KkDd + 4 kkDd + 4 kkdd

8 0
3 years ago
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