Refer to the accompanying figure. Which structure can be transferred to a different location in the embryo and still
cause differentiation of surrounding tissues?
a. 1
b. 2
c. 5
d. 6
e. 8
b
You might also like to view...
You thinly slice a carrot root and place the slices on a medium containing nutrients and hormones necessary for plant growth. After a few weeks, you see that there are many little entire carrot plants growing from the root slices. The cells in the root can give rise to an entire plant because many plant cells are
A. totipotent B. unipotent C. embryonic D. pluripotent E. semipotent
In order to visualize the DNA for a karyotype _____
a. DNA is treated with enzymes to open the compacted chromatin structure b. DNA is treated with proteases to open the compacted chromatin structure c. DNA is stained to visualize the DNA. d. DNA is treated with enzymes to compact the chromatin structure e. DNA is treated with proteases to compact the chromatin structure
The basal metabolic rate per unit of body mass is highest in a
A) large endotherm. B) small endotherm. C) large ectotherm. D) small ectotherm.
Your friend was diagnosed with strep throat 2 months ago. She was treated with antibiotics for 10 days, but two weeks after treatment, the symptoms returned
She was given a different antibiotic and her symptoms improved again, initially, but then got worse. What is happening? A) Your friend has taken antibiotics so long that she has become tolerant to them, making them ineffective. B) Exposure to antibiotics has caused each individual bacterial cell to evolve resistance to the antibiotics. C) Your friend was originally infected with some bacteria that were resistant to these two antibiotics and the bacteria multiplied. D) Your friend probably doesn't have a bacterial infection. There must be some other reason for her symptoms.