What is the difference between DNA, chromatin, and Chromosomes?

1 answer:

4 0

Deoxyribonucleic acid (DNA) is the hereditary material that lies within the nucleus of all cells in humans and other living organisms. Most of the DNA is placed within the nucleus and is called nuclear DNA.

A chromosome is made up of two chromatids which are joined by the centromere. The chromatids separate from each other during mitosis to form two new chromosomes. The DNA making up a chromosome is dispersed as chromatin.

Under a microscope, chromatids look like little dots and chromosomes are lines.

You might be interested in

How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?

adoni [48]

Answer:

The answer is B

Explanation:

5 0

3 years ago

Read 2 more answers

Aiding in emotional processing and arousal functions are functions of the __________. A. Thalamus B. Hypothalamus C. Cerebrum D.

Liono4ka [1.6K]

Answer:

A. Thalamus

Explanation:

There are two large ovoid organs called the thalamus, which form most of the lateral walls of the third ventricle of the brain. A variety of receptors transmit signals from the thalamus to the cerebral cortex. Thalamus is anatomically situated adjacent to the midline third ventricle in the brain.

5 0

2 years ago

Photosynthesis transforms blank into chemical energy by blank sugars. Cellular respiration releases the blank from food by blank

creativ13 [48]

Photosynthesis and Cellular respiration, both cellular processes are important for life, however, we need to understand what happens to confirm this information....

<h3>Photosynthesis</h3>

Most life on Earth depends on photosynthesis. The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar). Herbivores then obtain this energy by eating plants, and carnivores obtain it by eating herbivores.

Inside the plant cell are small organelles called chloroplasts, which store the energy of sunlight. Within the thylakoid membranes of the chloroplast is a light-absorbing pigment called chlorophyll, which is responsible for giving the plant its green color. During photosynthesis, chlorophyll absorbs energy from blue- and red-light waves, and reflects green-light waves, making the plant appear green.

<h3>Cellular respiration</h3>

Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

One objective of the degradation of foodstuffs is to convert the energy contained in chemical bonds into the energy-rich compound adenosine triphosphate (ATP), which captures the chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.

With this information, we can say that photosynthesis transforms solar energy into chemical energy through sugars. Cellular respiration releases energy from food through sugars.

learn more about photosynthesis brainly.com/question/1388366?referrer=searchResults

5 0

2 years ago

How does the random movement of molecules bring about an even distribution of molecules throughout the system?

Lubov Fominskaja [6]

Diffusion is the random movement of molecules or particles from a region of high concentration to a region of low concentration bringing a natural flow in the system. Diffusion ensures that there is a state of equilibrium in the number of molecules in the system.

5 0

3 years ago

What gets passed from one cell to another in sexual reproduction?

d1i1m1o1n [39]

Answer:

C. Chromosomes

Explanation:

During fertilization in sexual reproduction, the nucleus of the male sperm cell fuses with the nucleus of the female egg cell. Chromosomes from the sperm combine with chromosomes from the egg to give the new cell a unique genetic make-up.

5 0

3 years ago