Explain the concept "the genetic code is almost universal." Why is it important?
What will be an ideal response?
This means that the codons that code for amino acids are the same in nearly all living organisms. For example, AGG codes for argenine in human cells, in the cells of a tomato plant, in the cells of a bacterium. This is the basis for genetic recombination.
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Rhizobium
A. fix nitrogen inside nodules on the roots of legumes. B. resemble fungi. C. produce antibiotics. D. produce a gall in plants.
During the ____ cycle, viral DNA, which has been inserted into the host DNA, remains mostly or completely inactive
but is replicated and passed onto host cell progeny
a. lytic b. lysogenic c. Krebs d. citric acid e. lytic or lysogenic
The water vascular system is not involved with: a. gas exchange
b. excretion. c. locomotion. d. sensing of light.
The karyotype in the image below is that of a _____
1.normal female
2.male with Down syndrome
3.normal male
4.nonhuman mammal