Which of the following is a type of epigenetic inheritance?

A. extra nuclear inheritance
B. X inactivation
C. imprinting
D. extranuclear inheritance and imprinting are both correct
E. X inactivation and imprinting are both correct


E. X inactivation and imprinting are both correct

Biology & Microbiology

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You have been sequencing a gene that codes for a protein in the mitochondrial electrontransport chain

If it is discovered that your gene is not responsible for reproductive isolation, why do you nevertheless see an accumulation of differences between A1 and A2? What will be an ideal response?

Biology & Microbiology

You are given two nucleic acids; one RNA and the other DNA. What are the main features to determine which is the DNA?

_____ DNA will have thymine instead of uracil in its nitrogenous bases. _____ DNA will have a double-stranded structure. _____ DNA will have ribose as the sugar in its backbone. _____ DNA will have uracil instead of thymine in its nitrogenous bases. _____ Adenine will be present in the DNA.

Biology & Microbiology

Members of the lineage ____ have a pair of shells that are hinged together. They close the shells

together by contraction of one or two adductor muscles.

a. Cephalopoda b. Polyplacophora c. Bivalvia d. Gastropoda e. Scaphopoda

Biology & Microbiology

Epigenetics is the study of heritable alterations in gene expression caused by ____

a. mechanisms that do not alter any DNA sequence

b. the mutation of a single gene c. translocations between alleles d. environmental factors e. replication and then improper repair of DNA coding mistakes

Biology & Microbiology