If a viral gene prevents peptidoglycan units from being linked to lipid carriers, what will happen to the bacterial cell?
A. The cell wall will weaken, eventually leading to cell lysis.
B. The bacterial cell will start to take on the properties of a Gram-negative cell.
C. The cell wall with become stronger leading to virus to enter the lysogenic cycle.
D. Lipid metabolism will become impaired.
Answer: A
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Biologists use nomenclature or the binomial to provide each species with a unique scientific name. Our species is called Homo sapiens. The first word refers to which taxonomical grouping?
A. Kingdom B. Phylum C. Order D. Genus E. Species
In the whole-genome shotgun method, the genome is fragmented and individual fragments are
sequenced. How do we determine the order of the nucleotides in the intact chromosome?
a. The fragmentation is done in a very systematic way such that the physical arrangement of fragments is readily apparent. b. The sequence of the ends of the fragments overlap with the ends of other fragments. c. We supplement our information with data from a different technique to determine the final chromosome arrangement. d. DNA hybridization assays are conducted to determine the physical arrangement of the genes on the chromosome. e. After sequencing, the fragments are labeled and used as probes in a Southern blot.
Fertilization in humans occurs in the
a. ovary. b. uterus. c. vagina. d. oviduct. e. follicle
Carbohydrates provide energy for the body. Why would carbohydrates from an apple be healthier than those from a slice of apple pie?
What will be an ideal response?