SWI/SNF normally plays a role in repressing the E2F genes, inhibiting progression through the cell cycle.

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#Id: 4941

#Unit 13. Methods in Biology

When we consider, the null speculation is true, the sampling distribution of the test statistic is called as chi-squared distribution.

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#Id: 6704

#Unit 3. Fundamental Processes

The mechanism of pre-tRNA splicing differs in three fundamental ways from the mechanisms used by self-splicing introns and spliceosomes.

First, splicing of pre-tRNAs is catalyzed by proteins, not by RNAs. Second, a pre-tRNA intron is excised in one step thatentails simultaneous cleavage at both ends of the intron. Finally, hydrolysis of GTP and ATP is required to join the two tRNA halves generated by cleavage on either side of the intron.

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#Id: 86

#Unit 5. Developmental Biology

Stages of commitment- 

1- Specification 

2- Determination

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#Id: 10200

#Unit 6. System Physiology – Plant

KNOX gene expression increases cytokinin levels in the shoot apical meristem by upregulating the cytokinin biosynthetic gene ISOPENTENYL TRANSFERASE7 (IPT7)

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#Id: 4515

#Unit 13. Methods in Biology