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2 years ago

Why a cell spends the majority of its time in interphase.

1 answer:

4 0

A cell spends the majority of its time in interphase because during this period the cell grows and synthesizes materials required during and after its division. During interphase, the cell duplicates its genetic material.

The cell cycle can be divided into a long interphase and a short mitotic (M) phase.

The interphase can in turn be divided into three phases: Growth 1 (G1) phase, Synthesis (S) phase and Growth 2 (G2) phase.

During the S phase, the cell duplicates its genetic material, which is sharply controlled by different cellular mechanisms (e.g., checkpoint mechanisms).

During G1 and G2 phases, the cell synthesizes all the proteins required during the M phase and after cell division.

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You might be interested in

What ultimately happens to the light energy captured during photosynthesis?

Degger [83]

Answer:

The correct answer is- It is used to produce glucose molecule

Explanation:

Photosynthesis is a process in which light energy is captured by chlorophyll which is then used to convert carbon dioxide and water into glucose. Oxygen is also produced as a by-product in this process.

The light energy is used to split water into oxygen, hydrogen ions and release electrons from it. The electrons pass through many electron carriers through photosystem II and I and ultimately reduce NADH+ to NADPH which is used in the Calvin cycle to produce glucose.

Therefore glucose is produced by the help of light energy captured during photosynthesis.

7 0

3 years ago

Why do traits that give an organism a disadvantage exist during meiosis? Please be as descriptive as possible and write it in yo

Roman55 [17]

Answer:

Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.

The disadvantage from not having the trait normally arises only after the reproductive stage of the individual's lifecycle is mostly over. This is a special case of "no strong pressure", because evolution selects genes, not the organism. In other words the beneficial mutation does not alter the reproductive fitness.

Explanation:

6 0

3 years ago

Classify the following organisms into their respective kingdoms (i) Yeast (ii) Penicillium (iii) Rhizobium (iv) Mushroom (v) Amo

lions [1.4K]

Answer:

(i) Yeast- Kingdom Fungi

(ii) Penicillium- Kingdom Fungi

(iii) Rhizobium- Kingdom Eubacteria

(iv) Mushroom- Kingdom Fungi

(v) Amoeba- Kingdom Protista

(vi) fish- Kingdom Animalia

Explanation:

Living organisms were classified into a large group called KINGDOM, which represent the largest and most generic grouping consisting of organisms that share a few similarities. The kingdoms that living organisms were classified into are as follows: Plantae, Animalia, Fungi, Protista, Eubacteria, Archaebacteria, etc.

Based on the question, the mentioned organisms are classified into the following kingdoms:

(I) Yeast: Yeast is a unicellular microbe classified under the Kingdom Fungi due to possession of chitin in its cell wall and other similar features with members of kingdom Fungi.

ii) Penicillium- Penicillium is a genus classified under the Kingdom Fungi.

(iii) Rhizobium- Rhizobium is a genus of prokaryotic organism (lack membrane-bound nucleus and organnelles) classified under the Kingdom Eubacteria.

(iv) Mushroom- Mushrooms are saprophytic (heterotrophic) species of organisms classified under the Kingdom Fungi.

(v) Amoeba- Amoeba is a genus of unicellular eukaryotes classified under the Kingdom Protista.

(vi) fish- Fishes are organisms classified under the Kingdom Animalia

3 0

3 years ago

What is dna and its function in human body??

IRISSAK [1]

DNA is the genetic composition of the cells in the human body, think of it as the coding for a computer but for cells. These carry your genetic composition (blue eyes, Brown hair, tall, short blah blah blah) and traits like smart, funny, shy.
Hope that helps.

3 0

3 years ago

The ESA only protects the actual species listed for protection and does not include their habitat. True False

igor_vitrenko [27]

Answer:

This trend suggests that although the ESA does effectively protect habitat, it doesn't protect all parts of a species' range equally. Rather, the Endangered Species Act provides unique and more effective protection for habitat that happens to be on federal land.

Explanation:

5 0

2 years ago