The digestive enzyme pepsin works in the acidic environment of the stomach to hydrolyze peptide bonds. As a result, pepsin affects which macromolecule?

A. carbohydrate
B. protein
C. DNA
D. lipid


B

Biology & Microbiology

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When grouping organisms, which classification is most general for a particular type of organism?

A. Kingdom B. Phylum C. Order D. Family E. Species

Biology & Microbiology

Two genes are on the same chromosome, yet crossing over occurs between them every time meiosis

occurs. Are these genes linked or unlinked and why?

What will be an ideal response?

Biology & Microbiology

Donn and Sabine have three children: identical twin sons (Gerard and Gerome) and a daughter (Eliza). To which

family member would Gerard's MHC genes be the most similar?

a. Donn b. Sabine c. Eliza d. Gerome

e. Gerome, Eliza, and Gerard have identical MHC genes

Biology & Microbiology

Normally, only female cats have the tortoiseshell phenotype because _____

A) a male inherits only one allele of the X-linked gene controlling hair color B) the Y chromosome has a gene blocking orange coloration C) only males can have Barr bodies D) multiple crossovers on the Y chromosome prevent orange pigment production

Biology & Microbiology