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sladkih [1.3K]
3 years ago
5

What would happen if gel was placed with dna

Biology
2 answers:
Zolol [24]3 years ago
3 0
What type of gel is it?
Damm [24]3 years ago
3 0
DNA has a negative charge. When you run a gel, you start with the wells containing DNA closest to the negative electrode. Positive attracts negative so the DNA migrates through the gel towards the positive electrode. If you were to start with the DNA wells near to the positive electrode, the DNA would still move towards the positive electrode - off your gel into your buffer, which would give you no data and buffer solution full of DNA. So you always start with the wells at the negative end so the negatively charged DNA moves through the gel <span>towards the positive electrode.hope it helped</span>
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when two true breeding pea plants that show contrasting traits are crossed 1) mention the pod shape in F1 generation 2)work out
agasfer [191]

Answer:

1.) Inflated pod shapes (Cc) in the F1 generation

2) See attached image for the work out of the cross from P generation to F2 generation.

3). CC- 1/4, Cc- 1/2, cc- 1/4

Explanation:

This question is related to the pod shape trait encoded by a single gene in pea plants. The alleles for inflated pod shape (C) is dominant over the allele for constricted pod shape (c). This means that allele "C" will be expressed over allele "c" in a heterozygous state.

The two truebreeding parent plants will have genotypes: CC (inflated pod shape) and cc (constricted pod shape). When these two plants are crossed, an all heterozygous plant with genotype: Cc will be formed in the F1 generation. Since, C is dominant over c, the F1 Cc plants will have an inflated pod shape phenotype.

The F1 Cc plants are self-crossed to produce the F2 generation offsprings i.e. Cc × Cc. The gametes C and c will be produced by each F1 parent, which will be used to draw a punnet square (see attached image). From the cross, offsprings with genotypes: CC, Cc and cc are produced in the F2 generation.

CC (phenotypically inflated pod shape)- 1/4

Cc (phenotypically inflated pod shape)- 1/2 or 2/4

cc (phenotypically constricted pod shape)- 1/4

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Answer: Light goes into the eye via the cornea, it then pass through the pupil, the lens, the vitreous humor and finally forms an image on the retina.

Explanation:

Light goes into the eye via the cornea. The cornea is a clear, dome-shaped surface that covers the front of the eye.

From the cornea, the light passes through the pupil. The pupil regulates the amount of light passing through.

From the pupil, , light hits the lens. The lens is the clear structure inside the eye. It focuses light rays onto the retina.

Subsequently, light passes through the vitreous humor. A clear, jelly-like substance that fills the center of the eye. It helps to keep the eye round in shape.

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