Which of the following represents the lowest level of chromatin packaging?
a. 10 nm fiber
b. chromonema fiber
c. nucleosome
d. 30 nm fiber
e. interphase chromatid
Ans: c
You might also like to view...
Operons that code for catabolic enzyme systems are typically regulated by repressors
Indicate whether the statement is true or false
In the frog genus, when certain species attempts to mate with other species, embryo development is halted at various stages including zygotic segmentation, blastula formation, gastrulation, or in the final phases of embryo development
The stage where the developing frog arrests depends on the species involved in the cross. This is an example of A. hybrid breakdown. B. hybrid sterility. C. hybrid inviability D. sexual isolation.
The interval stage before the onset of DNA replication is called the
a. G1 stage. b. G2 stage. c. M stage. d. S stage. e. G3 stage.
The three most common atoms in the human body
are a. hydrogen, oxygen, and carbon. b. carbon, hydrogen, and nitrogen. c. carbon, nitrogen, and oxygen. d. nitrogen, hydrogen, and oxygen. e. carbon, oxygen, and sulfur.