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m_a_m_a [10]
3 years ago
6

About how long after fertilization do human cells lose totipotency

Biology
1 answer:
Oliga [24]3 years ago
5 0

The human cells will lose totipotency about 4 days after fertilization. The fertilized egg creates a single totipotent cell called  a zygote. The zygote divides into identical totipotent cells. Approximately about 4 days, the totipotent cells begin to specialize and becomes pluripotent.

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Por que una hoja es una textura natural​
Katyanochek1 [597]

Answer:

Because a leaf is a natural texture is this what your asking.

Explanation:

8 0
2 years ago
The frequency of a lethal allele in a population is greatest when it is: Group of answer choices dominant manifested in infancy
bonufazy [111]

Answer:

recessive

Explanation:

A lethal allele is a gene variant associated with a mutation in an essential gene, which has the potential to cause the death of an individual. In general, lethal genes are recessive because these alleles do not cause death in heterozygous individuals, which have one copy of the normal allele and one copy of the allele for the lethal disease/disorder. In recessive lethal diseases, heterozygous individuals are carriers of the recessive lethal allele and can eventually pass the 'defective' allele on to offspring even though they are unaffected; whereas dominant lethal diseases are caused by dominant lethal alleles, which only need to be present in one copy to be fatal. In consequence, the frequency of recessive lethal alleles is generally higher than dominant lethal alleles because they can be masked in carrier individuals. Some examples of human diseases caused by recessive lethal alleles include, among others, Tay-Sachs disease, sickle-cell anemia, and cystic fibrosis.

7 0
3 years ago
You record the sea temperature to be 28°C, the humidity to be very high, and a very light breeze. Do you expect a hurricane to f
makkiz [27]
Yes because if the sea temperature is at 28 percent. It will form a hurricane in this conditions
6 0
2 years ago
What is a sex-linked disorder?
Ugo [173]

Answer:

Sex linked is a trait in which a gene is located on a sex chromosome. In humans, the term generally refers to traits that are influenced by genes on the X chromosome. This is because the X chromosome is large and contains many more genes than the smaller Y chromosome.

Ex: hemophilia

hope this helps

have a good day :)

Explanation:

6 0
2 years ago
A few years after a devastating forest fire, pioneer trees become established. after another 50 years, those trees are replaced
Keith_Richards [23]
Abiotic factors composed of water, light, temperature and air etc. due to fire's this primary succession was completely destroyed. Their remaining organic bodies were decomposed in soil texture.

In order to establish secondary succession there is need of water and light, because water help in translocation of food and nutrients in plants while light is important for photosynthesis.

Photosynthesis need three major components. these are H₂O, CO₂ and light, all these components are abiotic part of ecosystem. However, when secondary succession occurs, then light play a key role in changing the composition of plant community. The best example is the difference in height of plants of different community.
4 0
2 years ago
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