Genetics Answers

Explain the difference between a continuous trait and a discontinuous trait. Give two examples of each. Are quantitative traits likely to be continuous or discontinuous? Explain why

transcribe the following dna code from the nucleus to the mrna molecule

TAC - GGA - CAG - GCG - CCG - CAA - CGC -TAT - ACT

 What evolutionary factors can cause allele frequencies to change and possibly lead to a genetic polymorphism? Discuss the relative importance of each type of process.

If parents were heterozygous X,Y. what blood groups of offsprings we observe

can Mendelian explain about all inheritance of genetic diseases in humans? are any exceptions?

pP×PP are parents, predict the phenotype and genotype of F1 and F2 after the test cross

Assess the possibility of errors occurring during the stages of protein synthesis, particularly during transcription and translation. Analyse the cause and effect of genetic mutations in DNA, including:

• Missense 

• Nonsense

• Silent

• Insertion

• Deletion

• Duplication

• frameshift

Provide examples of the impact that these errors may have on the end products of protein synthesis

List the characteristics of dominant inheritance linked to the X chromosome.

Give 2 examples of diseases.

Describe the scheme when crossing

1) a sick woman (2 options !!!) and a healthy man.

2) a healthy woman and a sick man

Assess the possibility of errors occurring during the stages of protein synthesis, particularly during transcription and translation. Analyse the cause and effect of genetic mutations in DNA, including:

• Missense 

• Nonsense

• Silent

• Insertion

• Deletion

• Duplication

• frameshift

Provide examples of the impact that these errors may have on the end products of protein synthesis.

Discuss how the genetic code allows proteins to be synthesised with minimal errors taking place, including:

• triplet codes

• codon

• anticodon

• degenerate code

• non-overlapping