Epigenetics is the study of how DNA methylation and alterations to chromosomal proteins affect a gene or group of genes express themselves. For changes in a gene's expression, both of these are need.
In a biological process called DNA methylation, methyl groups are added to the DNA molecule. A DNA segment's activity can be altered by methylation without the sequence changing. DNA methylation usually inhibits transcription of genes when it occurs in a gene promoter.
Epigenetics literally translates to "along with changes in genetic sequence." Any procedure that modifies gene activity without altering DNA sequence and results in modifications that can be passed on to daughter cells is now included in the term. Is called Epigenetics.
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Answer:
The correct answer would be- 1:1:1:1.
Explanation:
According to the question the cross between the two pea plants with the genotype RrYy and rryy where R for round seeds and r for recessive form that expressed wrinkled seed character. The other character of this dihybrid cross is the color of the seds Y for green and y for yellow seeds.
The cross is shown in the image attached that suggests that phenotypic ratio would be 1:1:1:1 as RrYy, Rryy, rrYy, and rryy.
Thus, the correct answer is : 1:1:1:1.
Cool front is not a standard weather front. Cold front, warm front and occluded front are all standard weather front. When you say weather front, it is a boundary that separate 2 air masses.
<span>Monitor the client closely for bleeding and review coagulation indices when available.
</span>
Combining TCAs with warfarin creates a risk for bleeding,
which should be addressed in the nursing care plan. There is no known interaction
between TCAs and calcium supplements or bisphosphonates that would create a
risk for hypocalcemia. TCAs do not heighten the risk of gastroesophageal reflux.
TCAs can affect blood pressure, but this is unrelated to any known drug-drug interactions.
According to prep u/ Course point
6. a, 7. c, 8. b , 9. e , 10. d , 11. e, 12.c