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ExtremeBDS [4]
3 years ago
14

Chromosome structure can be microscopically observed best during.

Biology
1 answer:
kirza4 [7]3 years ago
6 0

Answer: chromatin condenses into chromosomes and can be best observed in prophase.

Explanation: chromosomes can’t be visualised by a light microscope except during cell division (mitosis or meiosis). The individual chromosomes become visible as the chromatin is wound tightly and are most clealry seen in late prophase.

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Which of the following is a biotic factor within an ecosystem?
andreev551 [17]

Answer:

c. is a biotic factor within an ecosystem

8 0
3 years ago
Paper chromatography is a technique used to separate molecules based upon their size and solubility in a particular solvent. If
Tanya [424]

Answer:

a. Paper chromatography would separate the pigments into several bands that appear green or yellow/orange.

Explanation:

The primary or main pigment in plants is the chlorophyll. The chlorophyll gives plants their characteristics green colour and helps in the absorption of light during photosynthesis.

Other pigments in plants include carotenoid with its characteristic yellow, red or orange colour; anthocyanin with its re/blue colour and betalains with its red/yellow colour.

<em>Hence, if pigments from a particular species of plant are extracted and subjected to paper chromatography, one would expect the pigments to be separated into several colour bands ranging from green to yellow/orange.</em>

The correct option is a.

4 0
3 years ago
Growth and repair involve primarily what type of reactions?1. catabolic2. It depends on which body or cell part is growing or re
Rus_ich [418]

Answer:

Anabolic.

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Thus, the correct answer is option (3).

4 0
3 years ago
Explain how Osgood Blastwood was killed
Phantasy [73]

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Doctor Who official maker and lead author Steven Moffat stated: "Osgood is back, straight from her ongoing homicide toward the finish of last arrangement. "We as of late affirmed that Osgood was unquestionably dead and not returning - yet in a show about time travel, anything can occur.

Explanation:

4 0
3 years ago
Approximately how quickly do the Earth's crustal plates move? A. A few centimeters a year B. A few centimeters a month C. A few
aliya0001 [1]

The correct answer is - A. A few centimeters a year.

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6 0
3 years ago
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