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dusya [7]
3 years ago
12

The two cells formed at the end of meiosis I have chromosomes that are

Biology
1 answer:
vaieri [72.5K]3 years ago
6 0
The two cells formed at the end of mitosis is called daughter cells which means there identical
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Which natural selection condition example can be classified as over production of offspring?
Tatiana [17]
Natural selection is the process by which individuals with characteristics that are advantageous for reproduction in a specific environment leave more offspring in the next generation, thereby increasing the proportion of their genes in the population gene pool over time. Natural selection is the principal mechanism of evolutionary change, and is the most important idea in all biology. Natural selection, the unifying concept of life, was first proposed by Charles Darwin, and represents his single greatest contribution to science.

Natural selection occurs in any reproducing population faced with a changing or variable environment. The environment includes not only physical factors such as climate or terrain, but also living factors such as predators, prey, and other members of a population.

Mechanism of Natural Selection

The mechanism of natural selection depends on several phenomena:

• Heredity: Offspring inherit their traits from their parents, in the form of genes.

• Heritable individual variation: Members of a population have slight differences among them, whether in height, eyesight acuity, beak shape, rate of egg production, or other traits that may affect survival and reproduction. If a trait has a genetic basis, it can be passed on to offspring.

• Overproduction of offspring: In any given generation, populations tend to create more progeny than can survive to reproductive age.

• Competition for resources: Because of excess population, individuals must compete for food, nesting sites, mates, or other resources that affect their ability to successfully reproduce.

Given all these factors, natural selection unavoidably occurs. Those members of a population that reproduce the most will, by definition, leave more offspring for the next generation. These offspring inherit their parents' traits, and are therefore also likely to succeed in competition for resources (assuming the environment continues to pose the same challenges as those faced by parents). Over several generations, the proportion of offspring in a population that are descended from the successful ancestor



Uloborid spider eggs and spiderlings. In any given generation, populations tend to create more offspring than can survive to reproductive age.

increases, and traits that made the ancestor successful therefore also increase in frequency. Natural selection leads to adaptation, in which an organism's traits conform to the environment's conditions for existence.

5 0
2 years ago
A student inherited left handedness from parents who are both right handed. Explain the pattern of inheritance
Tatiana [17]

Answer:

the left handedness was a recessive trait and skipped one or maybe multiple generations

Explanation:

^

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l

l

8 0
2 years ago
Read 2 more answers
Contact with infected cats and their feces is the only mode of transmission of Toxoplasma to humans. Contact with infected cats
Mkey [24]

Answer:

False

Explanation:

Toxoplasma is a congenital disease that is characterized by mild muscle aches, tender lymph nodes, etc. and in some immuno-compromised individuals, seizures and coordination loss may occur. I

The disease is caused by a protozoan known as <em>Toxoplasma gondii </em>and its infection is usually by eating foods (usually meats) that contain the cyst of the organism or making contact with cats that are infected in addition to infected mother-baby transmission, especially during pregnancy.

<em>Hence, humans can contract the organism not just by exposure to an infected cat but also by eating meats that contain the cysts of the organism.</em>

8 0
3 years ago
Read 2 more answers
Monosaccharides are generally defined by what to hydrogen to oxygen ratios?
Thepotemich [5.8K]
I believe it is a 2:1 ratio of hydrogen to oxygen, because the way i learned was that carbon hydrogen and oxygen have a ratio of 1:2:1, respectively.
6 0
3 years ago
How many mutated genes are in each cell
tekilochka [14]

Answer:

The human genome contains around 20,687 protein-coding genes. Different genes or instructions are read at different times in different cells in response to the requirements of our bodies. Each cell contains two sets of genes, one from your mother and one from your father.

Explanation:

3 0
3 years ago
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