What percentage of the human genetic code influences visible characteristics associated with race?.

What do you think would happen if cells were not able to replicate and divide

nata0808 [166]

Answer:

theyed eventually become extinct because they are unable to reproduce

4 0

2 years ago

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Explain Mendel's law of independent assortment and how the 9:3:3:1 phenotypic ratio among the F2 of a dihybrid cross provides ev

GrogVix [38]

Answer:

Explanation:

Mendel's law of independent assortment state that two different genes assort independently in gamete formation.

To reach this conclusion, one has to do a dihybrid cross. This means that two genes responsible for different traits need to be analyzed at the same time.

1) Starting with a parental generation of a cross between two pure lines (homozygous for both genes) with different traits, a plant with yellow and round seeds (YYRR) and another with green and wrinkled seeds (yyrr). The F1 will be phenotypically homogeneous (yellow and round), and genotypically heterozygous (YyRr).

2) If the individuals from the F1 are crossed with one another, we have to do a Punnett Square to determine the phenotypic ratio of the F2.

If the genes assort independently, the F1 individuals will produce their different gametes with the same probability. Each possible gamete will appear in a 1/4 proportion: YR, Yr, yR, yr.
The 9:3:3:1 ratio is a result of analyzing the possible phenotypes that result from the dihybrid cross.

See the attached image for an illustration of the crosses in each generation and the Punnett Square.

4 0

2 years ago

Carlos avoids _____on the ingredient list of packaged foods because he has celiac disease.

mamaluj [8]

Answer:

wheat, rye, and barley

Explanation:

Celiac disease is a type of an immune disorder in which a person is unable to eat food that contains gluten because it can lead to the destruction of their small intestine.
Gluten is a type of protein that is found in several ingredients such as wheat, rye, and barley.
Consumption of gluten can lead to the development of inflammation in the small intestine which after a certain time can lead to its destruction.
The various symptoms associated with the disease include bloating, diarrhea, anemia, etc.
Since Carlos has celiac disease he has to avoid wheat, rye, and barley.

5 0

2 years ago

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a _

Ket [755]

The correct answer is D) fern gametophyte bearing only antheridia.

8 0

2 years ago

A boy blows up a balloon and knots the end he leaves it on the kitchen counter. His little sister finds it and takes it outside

Diano4ka-milaya [45]

Answer:

The balloon will expand or explode (with enough time)

Explanation:

Charles law states that the volume of a fixed gas is directly proportional to the temperature and pressure. The higher the temperature, the higher the pressure. This will raise the volume, causing the balloon to expand at the very least.

5 0

2 years ago

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