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Explain multiple alleles with respect to ABO blood group in humans

An allele is a variant or alternate form of gene which are found on same gene loci. Humans are diploid organisms having two alleles for a given gene. However in nature more than two variants are possible...

Answered by Hamsika K. • Biology tutor

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Describe the metaphase phase of mitosis.

The cell's chromosomes, attached to spindle fibres, align themselves on the metaphase plate in the middle of the cell.

Answered by Matthew R. • Biology tutor

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(i) Prove sin(θ)/cos(θ) + cos(θ)/sin(θ) = 2cosec(2θ) , (ii) draw draph of y = 2cosec(2θ) for 0<θ< 360°, (iii) solve to 1 d.p. : sin(θ)/cos(θ) + cos(θ)/sin(θ) = 3.

For (i) Start by looking at left hand side of the equation. It is usually much easier to reduce large expression into smaller ones. So, LHS = sin²(θ) +cos²(θ)/ sin(θ)cos(θ). Since, s...

Answered by Rabin K. • Maths tutor

10445 Views

The equation of line L is y= 3x+2 and the equation of line M is 3y–9x+5=0. Show that these lines are parallel.

First step is to understand what it means for lines to be parallel. This is when the gradients of two lines are the same.This is much easier to see when the format of the equations is the same, so lets re...

Answered by Paulius P. • Maths tutor

3102 Views

What is Strict Liability?

Crimes which are strict liability require no proof of mens rea in relation to one or more aspects of the actus reus. It could also be considered actionable per se as the crime speaks for itself. Strict li...

Answered by Harriet M. • Law tutor

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