1. only a subset of viruses contains all of the enzymes necessary for transcribing their own genome
2. no viruses contain the t RNA necessary to translate m RNA
3. viruses can make ribosomes necessary to translate m RNA
4. once a virus has entered a cell, it cannot being making copies of it self immediately
viruses can make ribosomes necessary to translate m RNA
1. They puncture the cell wall
2. They bind to a membrane protein
3. They bind to the lipid bilayer
4. They pass through a wound
They bind to a membrane protein
1. Leeuwenhoek
2. AP de Candolle
3. Dimitri Ivanowsky
4. KM Smith
Dimitri Ivanowsky
1. an algal virus
2. an animal virus
3. a virus infecting higher plants
4. a bacterial virus
a virus infecting higher plants
1. Jacob and Monod
2. Lederberg and Zinder
3. Lederberg and Tatum
4. Schafferman and Morris
Schafferman and Morris
1. Lederberg and Zinder
2. Smith and Knight
3. Schafferman and Morris
4. Lwoff and Wollmann
Lwoff and Wollmann
1. picorna DNA virus
2. retrovirus
3. corona RNA virus
4. corona DNA virus
corona RNA virus
1. Follicular phase
2. Ovulatory phase
3. Luteal phase
4. Menstruation
Menstruation
1. Found in human ovaries
2. Source of hormones
3. Haracterized by yellow colour
4. Contributory in maintain pregnancy
Haracterized by yellow colour
1. Umbilicus
2. Placenta
3. Discus proligerus
4. Allantoic artery and vein
Placenta