Top answers

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 ff...
SA
Answered by Sama A. • Biology tutor
4059 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 sqrt(5) can be treated as a variable like x . The...
AP
Answered by Anselmo P. • Maths tutor
9356 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 a big house. Si j'etais riche, je acheterais...
NH
Answered by Natalie H. • French tutor
1927 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 the act of treat...
NH
11081 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 to how con...
NH
93150 Views