An animal that can fertilize its own eggs is

A. a synchronous hermaphrodite.
B. a sequential hermaphrodite.
C. producing asexually.
D. a protrandous hermaphrodite.
E. a protogynous hermaphrodite.


A. a synchronous hermaphrodite.

Biology & Microbiology

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What do enzyme-linked receptors and growth factor receptors have in common?

A. Both possess kinase activity when bound to a hormone. B. Both regulate specific G proteins when bound to a hormone. C. Both act as transcriptional factors. D. Both regulate the transport of ions through channels. E. Both seldom affect the expression of genes within the nucleus.

Biology & Microbiology

Name the substance that serves as the hereditary material in eukaryotes and prokaryotes

What will be an ideal response?

Biology & Microbiology

How does heat affect a DNA duplex? It causes:

a. the two strands to anneal. b. double-stranded breaks. c. denaturation. d. hybridization. e. mutations.

Biology & Microbiology

At 4:00 p.m. a closed flask of sterile broth is inoculated with 10,000 cells. The lag phase lasts 1 hour. At 9:00 p.m. the log phase culture has population of approximately 41 million cells. The estimated number of generations that has occurred is ________.

A. 21 B. 12 C. 5 D. 27

Biology & Microbiology