Describe an experiment you would perform to prove that an orange contains vitamin C

1 answer:

5 0

To prove that a certain fruit (in this case, an orange) indeed contains a certain compound (in this case, vitamin C); then the vitamin C should be extracted and isolated from the orange and must be confirmed by molecular analysis. The extraction process involves using chemicals (i.e. 6% MPA), and procedures such as centrifugation and filtration. Then the extract is stored and subjected to high-performance liquid analysis (HPLC) to measure the vitamin C content.

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In the summer squash, Cucurbita pepo, the fruit is normally disk-shaped. Two recessive mutations, g (globe) and r, (round), are

attashe74 [19]

Answer:

Let the interbred alleles be represente dy the letters A and B for two genes. Gene A will exist in two alleles, that will icnlude A and g while Gene B exists in two alleles, B and r.

The uppercase alleles are dominant to the lowercase alleles. The interbred long-shaped squash is AABB (aabb) and the true-breeding disk-shaped is ggrr AABB.The F1 offspring are AaBb.

The outcome of interbred of the F1 plants and genotypes and phenotype sof F2 for:

1) the disk-shaped phenotype, an offspring must inherit at least one dominant allele from both genes.

1 ggrr+ 2 Agrr+ 2 ggrB+ 4 AgBr = 9 disk-shaped offspring

2) To get the round phenotype, an offspring must inherit at least one dominant allele for one of the two genes but must be homozygous recessive for only one of the two genes.

1 ggrr+ 1 ggBB+ 2 AArB+ 2 gABB = 6 round-shaped offspring

3) To get the long phenotype, an offspring must inherit all recessive alleles:

1 AABB= 1 long-shaped offspring

Hence, the phenotype and genotype of F2 is is 9 disk-shaped offspring and 1 ggrr+ 2 Agrr+ 2 ggrB+ 4 AgBr; 6 round-shaped offspring and 1 ggrr+ 1 ggBB+ 2 AArB+ 2 gABB; and 1 long-shaped offspring and 1 ggrr+ 1 ggBB+ 2 AArB+ 2 gABB respectively.

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The doubling time of a type of bacteria is 35 minutes. if every bacterium reproduces, then after 35 minutes a population of 64 b

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Approximately the size of bacteria will grow to 128 bacteria if 64 bacteria will reproduce after 35 minutes. They will only reproduce once in 35 minutes. 
A bacteria will usually reproduce or grow by dividing into two this is called a binary fission. On the above situation, 64 bacteria will reproduce also a 64 bacteria which has the total of 128.

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Answer:

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