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2 years ago

Which of these is the best example of heat transfer through radiation?

Biology

1 answer:

Kruka [31]2 years ago

7 0

Answer:

A c:

Explanation:

because radiation is the transmission of energy in the of waves or particles through space or through materials including microwaves

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Name the types of fats found in foods?

olga55 [171]

Answer:

Saturated fats, trans fats, monounsaturated fats, and polyunsaturated fats.

Explanation:

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2 years ago

Read 2 more answers

Contrast the genetic content and the origin of sister versus nonsister chromatids during their earliest appearance in prophase I

Bogdan [553]

Answer:

Sister chromatids are identical forms of chromatids of a chromosomes. They are mostly formed by semi-conservative replication of DNA molecule of a single chromosome.Thus they are like 'photocopies' of original parent chromosomes; joined together at the Centromere.

They are exactly similar in all ramification; with the same gene and allele compositions..

However; slight differences arise between the two identical sisters due to mutation from errors at replication;and also in the length of telomere repeats.

Non-sister chromatids are dissimilar forms of chromatids of a chromosomes formed when each half of a chromosome at fertilisation from separate haploid sex-cells, of each parent. fused.They contain different genetic composition;because they are not on the same homologous chromosomes.Therefore crossing -over ensure variation.

However, they are genetically similar in composition; if they are contained in homologous chromosomes. This is because Synapsis of bivalent of these chromosomes allow genetic material to be shared by chromosomal crossing-over between the non-sister chromatids on the chromosomes ; therefore identical genetic characteristics are shared .

Explanation:

7 0

2 years ago

What are the phases of meiosis where crossing over occur

ehidna [41]

Answer:

Prophase 1

Explanation:

Prophase I :It can be divided into five stages:

1)Leplotene: In this stage, chromosome becomes visible and shorten as a single structure.

2)Zygotene: Homologous / sister chromosome pair up. This process is known as synapse. Synapse is the process of attachment of homologous /sister chromosome. One pair comes from the male parent while the other comes from the female parent.

3)Pachytene: Bivalents shorten.

4)Diplotene:Point of attachment of non-sister chromatids. The two chromosomes are seen to be joined at several points along their length. These points are known as Chiasmata.(Chiasmata, a cross). The paternal gene A, B, C may swap for the maternal gene a, b, c for instance, leading to a new gene combination in the resulting chromatids. This is referred to as *CROSSING OVER*.

5)Diakenesis: Homologous centromere move apart.

So, crossing over occurs in *Prophase 1.

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3 years ago

What is the fundamental unit of the nervous system?

Rama09 [41]

The neuron, or the impulse-conducting cell of nervous tissue.

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2 years ago

The Krebs cycle is also known as the Calvin cycle Pyruvic acid cycle Carbon - oxygen cycle Citric acid cycle

yawa3891 [41]

The answer of the question is citric acid cycle

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3 years ago