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Test Prep CLEP Science and Mathematics Exam Questions
CLEP Science and Mathematics: Biology, Calculus, Chemistry, College Algebra & Mathematics, Precalculus, Natural Sciences (Page 15 )

Updated On: 17-Feb-2026
Page 15 of 103
PDF with 494 Questions

The site of protein synthesis in eukaryotic cells.

  1. Chloroplast
  2. Mitochondria
  3. Nucleus
  4. Ribosome
  5. Endoplasmic reticulum

Answer(s): D

Explanation:

Ribosomes are the site of protein synthesis, whether or not they are free-floating in the cytoplasm or attached to the membrane of the ER.



Inner membrane made of convoluted cristae, where ETC proteins can be found.

  1. Chloroplast (13) Mitochondria
  2. Nucleus
  3. Ribosome
  4. Endoplasmic reticulum

Answer(s): B

Explanation:

The mitochondrial inner membrane takes many twists and turns into folds called cristae, where the proteins of the electron transport chain can be found.



Enzymes that copy DNA can make mistakes and end up copying certain regions toward the tips of chromosomes multiple times, resulting in areas that can cause various genetic illnesses.

  1. Epistasis
  2. Epigenesis
  3. Genomic imprinting
  4. Triplet repeat extension
  5. Mitochondrial inheritance

Answer(s): D

Explanation:

Some genes normally contain terminal regions with triplet nucleotide repeats (i.e. ...GTCGTCGTCGTC.) or other repeats that can extend up to 50 nucleotides long. Accumulation of repeats can result in genetic illnesses.



A second set of alleles determines whether or not a first set of alleles will be expressed.

  1. Epistasis
  2. Epigenesis
  3. Genomic imprinting
  4. Triplet repeat extension
  5. Mitochondrial inheritance

Answer(s): A

Explanation:

In some cases, a second set of genes determines whether or not a first set of genes will be expressed. For example, there may be genes for black fur (B) and brown (b) that are expressed only if a dominant gene for coloration (C) is present somewhere else. So, and individual could be BbCc and express black fur, or be Bbcc and be albino because of the recessive "no color" genes (c). This is known as epistasis.



Genes passed down through the egg from mother to offspring, and never passed down from fathers to offspring.

  1. Epistasis
  2. Epigenesis
  3. Genomic imprinting
  4. Triplet repeat extension
  5. Mitochondrial inheritance

Answer(s): E

Explanation:

Since eggs contain all organelles and sperm contain no organelles, the organelles of offspring are maternally derived. Not only that, but since mitochondria have their own DNA, distinct from nuclear DNA, diseases or other traits can be passed through maternal lines via mitochondria. They would be passed to all children from a mother, but only female children would continue to pass the trait on.






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