An earthworm burrows in the soil. The earthworm is directly interacting with the

Biology

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frozen [14]2 years ago

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ARE YOU A BOY ANSWERRR MEEEE

SIZIF [17.4K]2 years ago

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Lithosphere because the kotope help here is the outer crust and upper mantle of the earth

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Which occurs during both DNA replication and protein production

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Water flows up through vessels because water is sticky due to cohesion and adhesion.

kobusy [5.1K]

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Capillary Action

Explanation:

Water molecules are attracted to the molecules in the wall of the glass container.Water molecules stick together because of polarity; a water molecule has a slightly positive end and a slightly negative end. Opposite charges attract, creating a cohesive force. Water molecules are attracted to each other. Which are basically the definitions of adhesion and cohesion.

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A certain restriction enzyme digest results in DNA fragments of the following sizes: 4,000 bp, 2,500 bp, 2,000 bp, and 400 bp. S

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Smaller the size of the DNA fragment, farther it moves during electrophoresis. The sketch of the position of the fragments has been drawn in the figure below.

Explanation:

As we know DNA is a negatively charged molecule. So during electrophoresis the fragments move towards the positive electrode because opposite charges attract each other.

Different fragment move different distances according to their size during the electrophoresis. Smallest segment travels the largest distance in the gel medium while the largest one travels least distance.

In the question there are four DNA fragments with base pairs 4000, 2500, 2000 and 400 so the smallest segment with 400bp will be farthest from the starting point and the largest fragment with 4000bp will travel least distance in the gel medium. Their respective positions are shown in the figure below. The starting point is near the negative electrode.