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Sati [7]
2 years ago
5

Replication of the DNA takes place during theof mitosis​

Biology
2 answers:
Damm [24]2 years ago
8 0

Answer:

M phase (mitosis) is usually followed by cytokinesis. <u>S phase</u> is the period during which DNA replication occurs. The cell grows (more...) The duration of these cell cycle phases varies considerably in different kinds of cells.

Anastasy [175]2 years ago
5 0

S phase is the period during which DNA replication occurs in mitosis.

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List several causes of biodiversity loss.
Tasya [4]

Answer:

Biodiversity is the different types of living organism found in this earth. The biodiversity is getting extinct due to the natural and human calamity.

Habitat loss and fragmentation: The excessive loss of trees due to urbanization and deforestation, species has lost their habitat and become extinct.

Over-exploitation: The over-exploitation of the natural resources has directly result in the biodiversity loss of plants and animals.

Pollution: The different types of air pollution, water pollution and noise pollution has damaged the large number of organisms on earth.

Invasive species: The introduction of alien species in the environment can cause the deterioration of the original species inhabiting in the environment.

8 0
3 years ago
Which was not included in the support for Harry Hess’s hypothesis of sea-floor spreading?
krok68 [10]
The correct option is: GRATINIC ROCK IN THE OCEAN FLOOR.
Sea floor spreading refers to the process by which molten materials add new oceanic crust to the ocean floor. This process occurs slowly across the earth's middle ocean ridges. Harry Hess formulated an hypothesis to explain the phenomenon of sea floor spreading and all the above options support his hypothesis with the exception of option C.
8 0
3 years ago
Pseudohypertrophic muscular dystrophy is an inherited disorder that causes gradual deterioration of the muscles. It is seen almo
tankabanditka [31]

Answer:

This disorder is caused by a recessive allele, its inheritance is sex-linked.

Explanation:

The disorder affects boys born to unaffected parents, this means that at least one of them has to be a carrier of the allele which causes the disease. So, if the allele was dominant, it would express in parents and sons. But, in this case, only is expressed in sons, so it can´t be dominant. Moreover, this condition has a sex-linked inheritance because it is always seen in boys and never in girls. This happens due to boys only have an X chromosome, so if they inherit the recessive allele of the disease, they will express it. On the other hand, girls have two X chromosomes, so if they inherit one copy of the recessive allele, they will be carriers and they won't be affected.  

This disorder is never seen in females because they need to have two copies of the recessive allele. However, to have double copy, they should inherit one copy from their mothers and one copy of their fathers, but boys with the allele are affected and they die in early teens without having progeny.  Therefore, a girl can't have a "carrier-father", so they will never have two copies to express the disorder.

8 0
3 years ago
where might we see changes in concentration in nature and how could these changes affect living organisms?​
tekilochka [14]

Answer:

Explanation:

Any change in the climate of an area can affect the plants and animals living there, as well as the makeup of the entire ecosystem. Some species are already responding to a warmer climate by moving to cooler locations. ... Climate change also alters the life cycles of plants and animals

7 0
2 years ago
Contrast the structure of a bastula with that of a gastrula?
OLEGan [10]

Answer:

Blastocyst,Blastoderm

Explanation:

The blastula is made up of a hollow spherical layer of cells, referred to as the blastoderm which surrounds a yolk or fluid-filled space called the blastocele or blastocoel. In most mammals, including humans, the structure formed next is the blastocyst, a mass of inner cells that are distinct from the blastula

6 0
3 years ago
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