Answer the following statements true (T) or false (F)
1. Bacterial cells always contain one copy of a circular chromosome.
2. Bacteria can exchange DNA between strains of the same species and between different species.
3. Viroids have a genome but do not translate any of it to protein.
4. All forms of horizontal gene transfer require both the recipient and donor bacteria to be alive.
1. FALSE
2. TRUE
3. TRUE
4. FALSE
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Which of the following transgenic techniques requires linker proteins?
A) Embryonic stem cell method B) Retrovirus-mediated method C) Pronuclear injection method D) Sperm-mediated transfer method E) Plasma cell membrane fusion method
The first phase of the VMH syndrome, characterized by grossly excessive eating and rapid weight gain
What will be an ideal response?
The ability of the blood to transport oxygen is greatly reduced in individuals who have a dietary deficiency of this mineral
A) Sodium B) Calcium C) Potassium D) Zinc E) Iron
Altogether, the body secretes about 7 liters of water into the alimentary canal each day. About what percentage of this water gets reabsorbed?
A) 30% B) 50% C) 75% D) 90%