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4 years ago

When chromatin is condensed gene expression is likely taking place?

1 answer:

7 0

<span>Gene expression is taking place when chromatin is less condensed. Highly compacted chromatin is not accessible to the enzymes involved in DNA transcription, replication and repair because transcription is being inhibited or inactive. Therefore, looser configuration permits transcription or gene expression to take place. </span>

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PLZ HELP DUE IN 30 MINS

Alinara [238K]

Answer:

1)The leaves and stems of many desert plants have a thick, waxy covering. This waxy substance does not cover the stomata, but it covers most of the leaves, keeping the plants cooler and reducing evaporative loss. Small leaves on desert plants also help reduce moisture loss during transpiration.

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2 years ago

Definition of vascular tissue?

rjkz [21]

The tissue in higher plants that makes the vascular system, consisting of phloem and xylem, by which water and nutrients are conducted throughout the plant.

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3 years ago

From deep (innermost) to superficial (outermost), the layers of the organs of the alimentary canal are? 1) mucosa; 2) muscularis

horsena [70]

The correct order of the layers of the organs of the alimentary canal is mucosa, submucosa, muscularis externa, and serosa. The correct option is B.

<h3>What is alimentary canal?</h3>

The alimentary canal is a long tube of organs that allows food to pass through the body.

It encompasses the esophagus, stomach, and intestines and runs from the mouth to the rectum. The digestive tract of an adult is approximately 30 feet long.

Smooth muscle fibers or cells are long and spindly in shape. Peristalsis is the prime objective of these muscle fibers.

Mucosa, submucosa, muscularis externa, and serosa are the correct layers of the alimentary canal organs.

Thus, the correct option is B.

For more details regarding alimentary canal, visit:

brainly.com/question/9120234

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Your question seems incomplete, the probable options are:

A) 3, 2, 4, 1
B) 1, 4, 2, 3
C) 1, 4, 3, 2
D) 1, 2, 4, 3

6 0

2 years ago

Explain the 6 steps of how Darwin theorized how the finches formed new species:

Scilla [17]

Overproduction
Most species produce more offspring than can survive.

Competition
Since living space and food are limited, organisms must compete for the necessities.

Variation
Differences between individuals in a population.

Adaptations
Any kind of inherited trait that improves an organism's chances of survival.

Natural selection
The environment selects organisms with optimal traits to be the parents of the next generation.

Speciation
Over many generations, favorable adaptations accumulate and may result in a new species.

8 0

3 years ago

a. Most of the X chromosome genes encode proteins that have no role in female sexual development. b. Heterozygous females are mo

umka2103 [35]

a) false

b) false

c) false

d) true

Explanation:

a) X-chromosomes have all the genes for sexual characters of female child because female child receives 2 X-chromosomes.

b). Female are more affected with X-linked dominant disorders because female receive both the X chromosome from each of the parent.

c). In hemizygous state only single copy of gene in diploid cells. All males are hemizygous for genes on sex chromosome because male have only one sex chromosome as X and Y.

d). The resultant male will be having normal features of fertility only slow learning process, acne and above average height is seen.

5 0

3 years ago

Read 2 more answers