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Explain why parents, who do not have cystic fibrosis, can have a child with cystic fibrosis.

Because cytic fibrosis is a recessive genetic disease, both parents can be carriers therefore having Ff genotypes. If a punnett square is drawn, it can be seen that offspring with the genotypes FF, Ff and...

SA
Answered by Sama A. Biology tutor
3628 Views

Express (3 - sqrt(5))^2 in the form m + n*sqrt(5), where m and n are integers.

Layout the problem in a more recognisable form such as (3 - sqrt(5))(3 - sqrt(5)). Notice that this looks a lot like a factorised quadratic equation, where <...

AP
Answered by Anselmo P. Maths tutor
8849 Views

To use the conditional tense, what verb endings do I commonly use?

The conditional tense is used to say what would happen if something else were to occur or to talk about intentions to do something. 

If I was was rich, I would buy...

NH
Answered by Natalie H. French tutor
1629 Views

What is the difference between stereotyping, prejudice and discrimination?

Stereotyping is a set of generalisations about a group of people or a social group which are often incorrect.

Prejudice is a negative opinion formed before meeting someone.

Discrimination is...

NH
10487 Views

What is the difference between reliability and validity?

Reliability refers to how consistent the results of a study are or the consistent results of a measuring test.

This can be split into internal and external reliability. Internal reliability refers ...

NH
92229 Views

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