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Sedbober [7]
3 years ago
8

Explain how the dna standard (also called a ladder) is like a "control."

Biology
2 answers:
valina [46]3 years ago
7 0
It almost never can be altered

Marizza181 [45]3 years ago
4 0

DNA standard is like a control because it helps to identify the weight of the unknown samples run on electrophoresis gel. It helps to compare the bands of the unknown sample with its own band positions, and we can get the relative weight. DNA ladder consist of many bands whose sizes are known already, so that they can help to find the size of the sample DNA.

Also, a DNA ladder can't be altered during the process of running the DNA in electrophoresis gel.

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Mom is a dominant purebred for big feet. Dad is a hybrid for foot size. What are their chances of big feet? Or little feet? _ ou
Vika [28.1K]

Answer:

Parent´s chances:

  • Mom´s chances of giving their children the big feet allele are 2 out of 2, or 100%
  • Mom´s chances of giving their children the small feet allele are 0 out of 2, or 0%
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Offspring chances:

  • The offspring have 4 out of 4 or 100% of probability of having big feet. And 0 over 4 or 0% of probabilities of having short feet.

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached file

Download pdf
7 0
3 years ago
In a recent murder mystery, a woman died in minutes after consuming cyanide-laced sugar (glucose). Forensic scientists did some
AURORKA [14]

Answer:

<h2>Mitochondria was affected by the poison cellular respiration </h2>

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6 0
3 years ago
How long does it take for phosphorus to become a sedimentary rock
Salsk061 [2.6K]
Hello,

Here is your answer:

The proper answer to this question that it "can take more than <span>thousands of years for the process to be completed"!

If you need anymore help feel free to ask me!

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7 0
4 years ago
Although there are 61 codons in the universal genetic code that specify amino acids, most organisms possess fewer than 45 differ
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Answer: 4

Explanation:

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