ATM and ATR are protein kinases that become activated following specific types of DNA damage. 

A. ATM becomes activated in response to double‐strand breaks, which are detected by the MRN protein complex. 

B. ATR becomes activated by protein‐coated ssDNA that forms when replication forks become stalled or the DNA is being repaired after various types of damage.

C. ATR phosphorylates and activates the checkpoint kinase Chk2, which phosphorylates p53. D. ATM phosphorylates and activates the checkpoint kinase Chk1, which phosphorylates and inactivates the phosphatase Cdc25.

Which of the following combination is incorrect?

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#Question id: 5589

#Unit 5. Developmental Biology

The outer coating of a pollen grain or spore is called as

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#Unit 10. Ecological Principles

Approximately how many Kg of carnivore production can be supported by a field plot containing 2000 Kg of plant material?

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#Question id: 31133

#Unit 2. Cellular Organization

The main glucose transporter in the cells of skeletal muscle, cardiac muscle, and adipose tissue, called:

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#Unit 11. Evolution and Behavior

The frequency of galactosemia is approximately 1 in 40,000 live births. The frequency of the carrier state can be calculated as

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#Unit 1. Molecules and their Interaction Relevant to Biology

Which substance causes muscles to ache during strenuous exercise?