Transmembrane proteins involved in detecting external chemical signals and relaying that information to the cell are known as ________ proteins

Fill in the blank with correct word.


Answer: receptor

Biology & Microbiology

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The karyotype of one species of primate has 48 chromosomes. In a particular female, cell division goes awry and she produces one of her eggs with an extra chromosome (25). The most probable source of this error would be a mistake in which of the following

A) mitosis in her ovary B) metaphase I of one meiotic event C) telophase II of one meiotic event D) telophase I of one meiotic event E) either anaphase I or II

Biology & Microbiology

What enables the splicing of group I and II introns?

A. Spliceosomes B. Ribozymes C. snRNA D. Poly-A tail

Biology & Microbiology

James and Sally wanted to have a baby but were not having any luck, so they decided to try an artificial means of conception. They eventually were directed to a laboratory, where sperm and eggs were placed in a dish. This allows a sperm to merge with the

egg as it would in the oviduct. This procedure is called ________. A) surrogate motherhood B) in vitro fertilization C) gamete intrafallopian transfer D) zygote intrafallopian transfer

Biology & Microbiology

Which of the following is not a sign of inflammation?

A. heat B. pain C. difficulty breathing D. redness E. swelling

Biology & Microbiology