You are studying a new variant of a eukaryotic cell. The variant cell has mutated so that it no longer attaches well to surfaces or initiates the formation of a biofilm. The mutation in this cell has most likely affected the _____.
A) Cell membrane
B) Mitochondria
C) Glycocalyx
D) Flagellum
C) Glycocalyx
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Which of the following statements about independent assortment and segregation is correct?
A) The law of independent assortment requires describing two or more genes relative to one another. B) The law of segregation requires describing two or more genes relative to one another. C) The law of segregation requires having two or more generations to describe. D) The law of independent assortment is accounted for by observations of prophase I. E) The law of segregation is accounted for by anaphase of mitosis.
Which of the following techniques is most likely to lead to heteroplasmy?
A) Cytoplasmic donation B) Embryo donation C) Oocyte donation D) In vitro fertilization
Why is ribosomal RNA so useful for cataloging species in microbiome research?
A. The genes for rRNA are universal and slow to evolve. B. The genes for rRNA are more stable than other DNA, even in seawater. C. Genes for rRNA are unique to microbes, and not found in higher organisms. D. The few species that have rRNA genes are easily characterized by their presence.
Enveloped viruses may enter their host cells by engulfment within coated vesicles (endocytosis).
Answer the following statement true (T) or false (F)