Answer:
just did the quiz on apex it's A stroma
Explanation:
Answer:
a. Unconditioned Stimulus (US) – Teacher saying jump
b. Conditioned Stimulus (CS) – Clearing the throat, saying Uhmmmm... and then banging the stick/ruler and saying jump
c. Unconditioned Response (UR) – Jumping after hearing the word “jump”
d. Conditioned Response (CR) – Jumping after hearing Uhmmmm….banging of ruler and word “jump”
Explanation:
Unconditioned response is one in which the response generated in natural while in conditioned response, response is generated in unnatural fashion.
Likewise, unconditioned stimulus is a natural causing factor behind any natural response while conditioned stimulus is an unnatural causing factor behind any unnatural response.
a. Unconditioned Stimulus (US) – Teacher saying jump
b. Conditioned Stimulus (CS) – Clearing the throat, saying Uhmmmm... and then banging the stick/ruler and saying jump
c. Unconditioned Response (UR) – Jumping after hearing the word “jump”
d. Conditioned Response (CR) – Jumping after hearing Uhmmmm….banging of ruler and word “jump”
Answer:
All of the choices are correct
Explanation:
The respiratory syncytial virus (RSV) is an enveloped, negative-strand RNA virus (Paramyxoviridae family) capable of infecting ciliated cells of the airways by using its surface glycoproteins G and F for attachment and fusion during viral entry in target cells. RSV can affect the lungs and parts of the respiratory system (e.g., nasopharynx). Although RSV generally causes mild, cold-like symptoms, this virus may also lead to severe infection in babies (12 months) and infants, being one of the most common types of respiratory infections in children, older adults, and immunocompromised patients. Some common symptoms in individuals with RSV pneumonia include fever, nonproductive cough, dyspnea, wheezes, rales, rhonchi, etc.
Answer: The reason is because DNA polymerase which is the enzyme that catalyzes the synthesis of DNA has a 3'->5' exonuclease activity that double-checks each nucleotide after it is added.
Explanation: The 3'->5' exonuclease activity of DNA polymerase allows the enzyme to double-check and remove a newly added wrong nucleotide. It is highly specific for mismatched base pairs. When the DNA polymerase adds a wrong nucleotide to the growing strand, translocation of the enzyme to the position where the next nucleotide is to be added is halted, but the exonuclease activity of the DNA polymerase removes the incorrectly paired nucleotide so that replication can continue. The process of double-checking a newly added nucleotide and removal of any incorrectly paired nucleotide by the DNA polymerase is called proofreading.
