Using the histone code different histone modifications follow a particular nomenclature. Describe the histone with this code: H3K27me3 and what is the effect of this histone modification?

What will be an ideal response?


The lysine at position 27 on histone 3 has three methyl groups. The effect of this modification is linked to gene repression.

Biology & Microbiology

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Four of the five answers listed below are amoeboid protozoans. Select the exception

a. amoebas b. cellular slime molds c. plasmodial slime molds d. Dictyostelium e. diatoms

Biology & Microbiology

Body Mass Index (BMI) is 

A. calculated by determining a person's weight (without clothing) in pounds and barefoot height in feet. B. a person's weight in kilograms divided by their height in meters squared. C. a person's weight in pounds divided by their height in feet squared. D. equal to approximately 10% of your total daily Calorie intake.

Biology & Microbiology

All of the following statements are true about mutations EXCEPT:

a) Most mutations are harmful or neutral to the organism in which they occur. b) A mutation is any change in an organism's DNA. c) The origin of genetic variation is mutation. d) Mutations are almost always random with respect to the needs of the organism. e) The mutation rate can be affected by the bottleneck effect.

Biology & Microbiology

Why does increasing the temperature of a chemical reaction generally increase the rate of the reaction?

What will be an ideal response?

Biology & Microbiology