Coding 8 Flashcards

1
Q

What is the most crucial step when transitioning from fertilization to cleavage?

A

The activation of the mitosis promoting factors

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2
Q

What is cylin B?

A

A larger subunit of the MPF that initiates mitosis

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3
Q

What does cyclin B regulate?

A

Cyclin dependent kinase

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4
Q

What does CDK do?

A

It phosphorylates the proteins that are necessary for mitosis

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5
Q

What happens if there is no cyclin B?

A

There will be no CDK activation and no mitosis as a a result

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6
Q

What is the mid-blastula phase?

A

This is a phase where the zygote becomes independent and transcribes its own genes

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7
Q

What are the 3 outcomes of the MBP?

A
  1. There are G1 and G2 phases added
  2. Cells no longer divide synchronously because they use MPF
  3. Independent of the maternal genes but transcribe their own zygotic genes in gastrulation mainly
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8
Q
A
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