Merotelic attachment 

A kinetochore can attach to microtubules emanating from both poles at the same time

TLS Online TPP Program

#Id: 4910

#Unit 13. Methods in Biology

Variance is always non-negative since each term in the variance sum is squared and therefore the result is either positive or zero.

TLS Online TPP Program

#Id: 751

#Unit 3. Fundamental Processes

The palm domain is composed of a b sheet and contains the primary elements of the catalytic site.

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#Id: 5789

#Unit 7. System Physiology – Animal

Iodide is transported out of the thyroid cells across the apical membrane into the follicle by a chloride-iodide ion counter- transporter molecule called pendrin.

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#Id: 7058

#Unit 11. Evolution and Behavior

The Forces of Evolution

mutation, 

genetic drift

gene flow or migration

selection.

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#Id: 3995

#Unit 2. Cellular Organization

When an ethidium ion intercalates between two base pairs, it causes the DNA to unwind by 260, reducing the normal rotation per base pair from 360 to 100. In other words, ethidium decreases the twist of DNA.