Practice Questions

TLS Online TPP Program

#Question id: 3956

Which of the following statements about histones is not true?

#Section 3: Genetics, Cellular and Molecular Biology

Histones are very similar between species.
Histones have many basic amino acids.
Histones are rich in lysine and arginine.
Each histone has one single gene that codes for it.

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TLS Online TPP Program

#Question id: 4800

#Section 3: Genetics, Cellular and Molecular Biology

You set up a mapping cross involving two genes of interest in Saccharomyces and determine the following tetrad types: 8 nonparentalditype; 12 tetratype; 80 parental ditype. Calculate the most accurate map distance between these two genes.

TLS Online TPP Program

#Question id: 4801

#Section 3: Genetics, Cellular and Molecular Biology

You set up a mapping cross involving two genes in Aspergillus and determine the following percentages of tetrad types: parental ditype 51%, nonparentalditype 49%. What can you say about your genes?

TLS Online TPP Program

#Question id: 4802

#Section 3: Genetics, Cellular and Molecular Biology

Why is tetrad analysis useful for studying genetics?

TLS Online TPP Program

#Question id: 4803

#Section 3: Genetics, Cellular and Molecular Biology

Linked genes:

TLS Online TPP Program

#Question id: 4804

#Section 3: Genetics, Cellular and Molecular Biology

Formation of the following pattern in an ordered octad is due to what event during meiosis? Pattern: AAaaaaaAA