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arlik [135]
2 years ago
7

The student chewed the bread and kept it in test tube and added few drops of Iodine solution​

Biology
1 answer:
sammy [17]2 years ago
8 0

Answer:  here`s your answer

Explanation:  the solution will turn blue black colour as the presence of starch in bread and saliva from the mouth the iodine reacts with it and turns it blue black

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In Marker Analysis, how are STRs related to alleles? Be sure to define each term (STR and allele) and explain how the two result
Lisa [10]

Answer:

The number of STR repeats is unique and therefore it is considered as an allele of that <em>locus</em>

Explanation:

Short Tandem Repeats (STRs), also known as microsatellites or simple sequence repeats (SSRs), are short DNA sequences with a size of 1-6 nucleotide bases which may be many times repeated in tandem. STRs localize in specific regions of the genome (<em>loci</em>) and therefore they are molecular markers. Gel electrophoresis a technique used to separate DNA fragments based on their size. In consequence, the pattern of STR repeats or 'alleles' obtained by electrophoresis can be used to identify individuals. In a gel electrophoresis, STR markers produce different bands that run more slowly or faster on the gel in different lanes according to their size (e.g., more slowly >> higher size of the STR sequence), and thereby STR alleles are unique and serve to identify individuals.

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2 years ago
Need Help). Question 1): Photosynthesis and cellular respiration are often described in two ways: 1) they are chemically opposit
Zinaida [17]

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How has waste leaving a cell affected its surface area to volume ratio?
lapo4ka [179]

The important point is that the surface area to the volume ratio gets smaller as the cell gets larger and as volume increases, surface area to volume ratio decreases. The larger a cell, the less easily it can get rid of waste and it also has more trouble getting water, nutrients and gases in. That is why we do not see giant cells. Instead we see multiple cells in larger organisms.  

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