Helper T cells are found in the <u>Thymus.</u>
Explanation:
Immature T-cells are formed in the bone marrow, just like any other blood cells, through the process of hematopoiesis. These immature T cells are then transported to the thymus where they mature and differentiate into the different types of T cells; cytotoxic, helper and regulatory. T-helper cells, also called CD4⁺ cells, are important in activating B-cells and T-cytotoxic cells in case of infection.
Answer:
False is the correct answer
Explanation:
Answer:
Habitat Forests Red-shouldered Hawks are forest raptors. In the East, they live in bottomland hardwood stands, flooded deciduous swamps, and upland mixed ...
Explanation:
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The Epiglottis prevents food from entering your lungs.
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Answer:
The correct answer is a. Helicase unwinds DNA
Explanation:
DNA replication is a process in which DNA make it's own copy. There are several enzymes and factors which access the DNA replication process like helicase, primase, SSB protein, DNA polymerase etc.
The first step in DNA replication is the unwinding of double stranded DNA which is accomplished by an enzyme called Helicase. Helicase opens up the double stranded DNA at replication fork by breaking the hydrogen bond between the nucleotides of complementary strands.
This provides a single stranded template for DNA polymerase to form a new complementary strand. In <em>E. coli </em>Dna B is the primary helicase and in humans the primary helicase is MCM( minichromosome maintenance protein complex).
