A. At the replication fork, the dsDNA in front of the fork becomes increasingly positively supercoiled.

B. At the replication fork, the dsDNA in front of the fork becomes increasingly negatively supercoiled.

C. The “swivelase” that prevents the accumulation of positive supercoils ahead of the replication fork.

D. The “swivelase” that prevents the accumulation of negative supercoils ahead of the replication fork.

Which of the following combination of statements is correct

TLS Online TPP Program

#Question id: 11557

#Unit 7. System Physiology – Animal

Which of the following has both endocrine and exocrine activity?

TLS Online TPP Program

#Question id: 11558

#Unit 7. System Physiology – Animal

Analysis of a blood sample from a fasting individual who had not eaten for 24 hours would be expected to reveal high levels of ________.

TLS Online TPP Program

#Question id: 11559

#Unit 7. System Physiology – Animal

The steroid hormone that coordinates molting in arthropods is ________.

TLS Online TPP Program

#Question id: 11560

#Unit 7. System Physiology – Animal

Which of the following statements are correct?

I) Hormones often regulate homeostasis through antagonistic functions.

II) Hormones of the same chemical class usually have the same function.

III) Hormones are secreted by specialized cells usually located in exocrine glands.

IV) Hormones are often regulated through feedback loops.

TLS Online TPP Program

#Question id: 11561

#Unit 7. System Physiology – Animal

An example of antagonistic hormones controlling homeostasis is ________.

TLS Online TPP Program

#Question id: 11562

#Unit 7. System Physiology – Animal

The relationship between the insect hormones ecdysteroid and PTTH is an example of ________.