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tatiyna
3 years ago
10

Daren has sickle-cell disease. Because of the disease, some of Daren's blood cells are long and thin instead of being disk-shape

d. Daren's father also suffers from sickle-cell disease, but his mother and two sisters do not. This is an example how A. a person can choose which genes he or she will inherit. B. cells can be influenced by genetic factors. C. cells always repair damaged genes immediately. D. a person cannot survive if even one cell becomes damaged.
Biology
1 answer:
neonofarm [45]3 years ago
5 0

Answer: B cells can be influenced by genetic factors

Explanation: Daren has sickle cell disease. Sickle cell disorder is a kind of disease that affects the hemoglobin in the red blood cells. Hemoglobin, is a molecule in red blood cells that delivers oxygen to cells throughout the body. People with Sickle cell disorder have hemoglobin molecules called hemoglobin S, which distort the shape of the red blood cells. A normal red blood cell has a disc shape but people with sickle cell like Daren have their red blood cells and distorted into a sickle, or crescent, shape

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The allele for brown fur in mice (B) is dominant over the allele for white fur (b).
evablogger [386]

Answer:

Genotype: Bb (heterozygous)

Phenotype: brown fur

Explanation:

Since allele B is dominant to allele b, as long as genotype has allele B in it, its effect of phenotype will be expressed instead, regardless of whether allele b is present.

As mouse genotype is stated as Bb, on the chromosome from its parents, allele B comes from one parent while allele b is inherited from the other parent.

Phenotype is the expressed trait. In this case, as genotype has allele B, the phenotype will be brown fur as its effect is expressed.

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3 years ago
What Are Valence Electrons?Why Are Valence Electrons Important?
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3 years ago
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DaniilM [7]

Answer:

Tundra Biome and the Deciduous Forest Biome

Explanation:

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3 years ago
A pure-breeding, tall pea plant with white flowers is crossed with a pure-breeding, short plant with red flowers. The F1 plants
DIA [1.3K]

Answer:

Null Hypothesis -

The observed frequency is approximately equal to the expected frequency of phenotype.

Explanation:

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