BIOLOGY HIGH SCHOOL

Parent 1 has brown fur. Brown is a dominant color. Parent 1 genotype is Bb. Parent 2 has yellow fur. Yellow is a recessive color. Parent 2 genotype is bb. What is the probability that an offspring has two dominant alleles? Create a Punnett square to help you.

Answers

Answer 1
Answer:

Answer:

0

Explanation:

In this cross, brown fur (B) is dominant to yellow fur (b).

Parent 1 has brown fur, and a genotype Bb. Parent 2 has yellow fur, and a genotype bb.

The cross is Bb x bb

                       B                     b

      b              Bb                   bb

      b              Bb                   bb

50% of the offspring are heterozygous, and have brown fur (Bb). 50% of the offspring are h0m0zygous for the recessive allele (bb). However, it is not possible for the offspring to have two dominant alleles (BB) from this cross, so the probability is 0.

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Its been a while since I saw that movie but I believe there was a clip with a school of fish following a large fish around. The smaller fish get a source of food by cleaning / removing parasites from the large fish. The large fish obviously gets those little pests removed. That is an example of both parasitism and mutualism.

In the movie Finding Nemo, there are several examples of parasitism.

Parasitism is a type of symbiotic relationship in which one organism benefits at the expense of another organism. The organism that benefits is called the parasite, while the organism that is harmed is called the host.

  • One example of parasitism in Finding Nemo is the relationship between the cleaner shrimp and the fish that it cleans. The cleaner shrimp is a parasite, while the fish is the host. The cleaner shrimp benefits by feeding on the parasites and dead skin of the fish, while the fish benefits by having its skin cleaned. This is an example of mutualism, a type of symbiotic relationship in which both organism's benefit.
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In conclusion, parasitism is a type of symbiotic relationship in which one organism benefits at the expense of another organism.

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Which pathogens cause botulism, which is commonly known as food poisoning?a. fungi
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Final answer:

When completely saturated, one hemoglobin molecule can carry up to 4 molecules of oxygen.

Explanation:

When fully saturated, a single hemoglobin molecule can carry four molecules of Oxygen (O2). Hemoglobin is found in red blood cells and is the protein structure that is responsible for the transportation of oxygen from the lungs to the body's tissues. This is possible because each of the four polypeptide chains that make up the structure of hemoglobin has one heme group, and each heme group has one iron atom that can bind with one oxygen molecule. Hence, a single hemoglobin molecule can carry up to four molecules of oxygen.

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Answers

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Final answer:

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The phrase that best describes atoms is 'the smallest units of an element' (option b). This is because atoms are the basic pieces that make up all matter, and every different atom corresponds to a different element. An atom itself is composed of sub-atomic particles: protons and neutrons are stacked up into the nucleus at the center of the atom, while electrons orbit the nucleus in various energy levels.

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