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Biology
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Describe the structures of proteins

Primary structure - a sequence of amino acids in a polypeptide chain. They are joined together by peptide bonds. The sequence of amino acids determines the rest of the proteins structures. Secondary struc...

PM
Answered by Phoebe M. Biology tutor
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Sickle-cell anaemia is an inherited condition caued by a dominant allele.

Sickle cell anaemia is a disorder of the blood caused by an inherited abnormal haemoglobin the abnormal h...

MS
Answered by Mark S. Biology tutor
3429 Views

Describe the components of the fluid mosaic model (6).

The fluid mosaic model describes the typical plasma membrane as a phospolipid bilayer (1), composed of phosphates with fatty acid tails, which face each other inwardly. Within the phospholipid bilayer are...

GC
Answered by Gregor C. Biology tutor
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1. Polydactyly is caused by a dominant allele, D. The recessive allele of the gene is represented by d. Use one genetic diagram to show the inheritance of the polydactyly gene by R and S.

P generation Father (P) Mother(Q)

Phenotype Polydactyly Normal

Genotype Dd dd

Gamete D d d d

Fertilization

Punnett Square for F1 generation

F/M

d

d<...

SC
Answered by Suman C. Biology tutor
7918 Views

What causes a heart attack (also known as mycocardial infarction) and how are they treated?

During an individuals life arteries become covered in fatty plaque deposits. This causes the the inside (lumen) of the arteries to narrow. This narrowing increases the likelyhood of blockage of platelets ...

SC
Answered by Saskia C. Biology tutor
2756 Views

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