Lauren G. A Level Biology tutor, A Level Maths tutor

Lauren G.

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Degree: Medical Biochemistry (Bachelors) - Leeds University

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About me

I'm a second year Biochemistry undergraduate at the University Of Leeds. I have always enjoyed helping other people understand topics that they struggle with as well as helping people in general. I previously helped teach the children I nanny to read and at University I am involved in many projects, including helping refugees read and write English.

I am someone who really enjoys learning and teaching Science and Maths and I believe I can put this into my teaching methods. Applying the content to more interesting and current examples will help you remember but also understand more.

Subjects offered

SubjectLevelMy prices
Biology A Level £20 /hr
Maths A Level £20 /hr

Qualifications

QualificationLevelGrade
Biology A-LevelA
Chemistry A-LevelB
Maths A-LevelA
Disclosure and Barring Service

CRB/DBS Standard

04/07/2014

CRB/DBS Enhanced

No

Currently unavailable: no new students

Questions Lauren has answered

What are gene mutations?

A mutation is any change to the base sequence of DNA. The different types of mutations that can occur include: Subsitution - this is where one base is swapped for another Deletion - one or more bases are removed from the sequence Insertion - one oe more bases are added to the sequence Duplic...

A mutation is any change to the base sequence of DNA.

The different types of mutations that can occur include:

Subsitution - this is where one base is swapped for another

Deletion - one or more bases are removed from the sequence

Insertion - one oe more bases are added to the sequence

Duplication - one or more bases are repeated

Inversion - a sequence of bases is reversed, for example if a sequence was ATAGC, then an inversion mutation would cause it to become CGATA

 

Mutations don't always necessarily cause changes to the primary structure as the amino acid code is degenerate (more than one base sequence codes for the same amino acid)

For example TAT and TAC both code for the amino acid Tyrosine, so if the T was substituted for a C it wouldn't make a difference to the primary structure. 

 

However some mutations have a large effect on the base sequence. As the amino acid code is read in triplets, if a base is deleted or inserted it causes a frame shift, it changes the way the rest of the sequence is read.

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2 years ago

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What's the difference between genotype and phenotype?

The genotype of an organism is the alleles it has. while the phenotype is the characteristics the alleles produce.   For examples the alleles for hair colour could be BB for brown hair and Bb for blonde hair, The genotype BB would mean the phenotype is a person having brown hair,  while the...

The genotype of an organism is the alleles it has. while the phenotype is the characteristics the alleles produce.

 

For examples the alleles for hair colour could be BB for brown hair and Bb for blonde hair,

The genotype BB would mean the phenotype is a person having brown hair, 

while the genotype Bb makes the phenotype a person with blonde hair.

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2 years ago

336 views
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