Which of these is an example of sister chromatids?
a. Replicated chromosomes held together at the centromere
b. Maternal chromosome 1 and paternal chromosome 3
c. X and Y chromosomes
d. Maternal chromosome 1 and paternal chromosome 1
Answer: a. Replicated chromosomes held together at the centromere
You might also like to view...
Which of the following are group A Streptococcus (GAS)?
A) Streptococcus aureus B) Streptococcus pneumonia C) Streptococcus pyogenes D) Streptococcus viridans
Darwin's theory of evolution is supported by many modern pieces of evidence. Check all that apply.
_____ New measurements of the age of the earth. _____ An understanding of the mechanism of heredity. _____ Human population growth. _____ Comparative studies of animal structures. _____ Similarities in DNA of related species.
Looking at your results of the Ames test using bacteriological agar medium plates lacking the amino acid histidine, you find that there are many colonies growing on the agar. How do you interpret this result?
A. The drug being tested has no inhibitory effect on the bacterium; therefore, it is not a good antibiotic to give for treatment of disease. B. The chemical being tested is mutagenic. C. The bacterium has turned its operon genes on, producing proteins necessary for growth. D. The bacterium does not have any plasmids, so it cannot grow on the medium.
Antibiotic resistance is a result of ________ in bacteria
Fill in the blank(s) with correct word