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misrachel03
12.02.2020 •
Biology
1. Using your knowledge of Punnett squares and hybridization, what is the probability that a purebred monohybrid, dihybrid, three-factor cross or higher will lead to the expression of dominant phenotypes in first-generation offspring?
2. As you've learned, thalidomide is a teratogen, meaning that it causes birth defects when taken by pregnant women. Another teratogenic compound is alcohol, which is known to cause birth defects in the developing child's nervous system and contribute to the development of fetal alcohol syndrome. Can you explain the function of teratogens such as thalidomide and alcohol in terms of environmental factors that play a role in organismal development? What does the presence of teratogens mean for pregnant women who wish to have a healthy pregnancy for both themselves and their future children?
3. Some animals that look like they exhibit codominance actually do not. For example, the zebra, famous for its black and white stripes, obtains its pattern from a series of genes that initiate the production of a dark pigment called melanin on specific parts of its body. Different zebras can have different patterns of stripes as dictated by their genetic code. For example, the plains zebra has wide stripes, while the Grevy's zebra has narrow stripes. What are some other examples of striped and spotted animals that are genetically encoded to have these designs?
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Ответ:
The given statement is false.
Explanation:
The extracellular matrix refers to a collection of extracellular molecules produced by the cells, which offers biochemical and structural support to the adjacent cells.
However, the water vapor, oxygen, and carbon dioxide witnessed within the lungs are not found within the cells. The water, food, and the waste found in the intestines and stomach are also not found within the cells. The bile stored in the gall bladder is not found within the cells, and the hormones, which travel in the blood are not found within the cells.