After an F+ × F- mating, the donor is ________ and the recipient is ________.
A. F+; F-
B. F-; F-
C. F+; F+
D. F-; F+
Answer: A
You might also like to view...
Which of the following do NOT bind to the promoter sequence during regulation?
A) activators B) inducers C) repressors D) activators, inducers, and repressors
What is a Hartig net?
a. an ecosystem containing lichen that act as both producers and decomposers b. layer of fungi that surround roots, forming a thick exterior sheath *c. formation of hyphae enveloping the outer layer of root cells inside the mantle d. sticky, hair-like fungus that hang from tree branches to catch and digest insects 15. What are endophytes? a. Decomposing fungi that live on rotting plant and animal matter, breaking it down. b. Pathogenic fungi that live inside animals and destroy tissues by releasing toxins. c. Mutualistic fungi that live inside plants and provide their hosts with various benefits. d. Symbiotic fungi that live on tree bark without disturbing or benefitting their hosts.
Which species originated in Africa around 200,000-100,000 years ago?
a. Homo erectus b. Homo habilis c. Australopithecus afarensis d. Homo floresiensis e. Homo sapiens
Inherited mutations in the Xist promoter lead to defects in which epigenetic process?
A) RNAi B) X-inactivation C) genomic imprinting D) position effect variegation E) methylation of CpG islands