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trapecia [35]
2 years ago
11

Mary is a carrier for a mutated gene that causes sickle cell disease. Which of the following statements is true about Mary?

Biology
1 answer:
Sonja [21]2 years ago
8 0
(A) I just did a punnet square and all the other ones were wrong
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al has a pet cat. one day he observes that it is scratching and urinating on tree trunks in his yard. what behavior is al's cat
astra-53 [7]

Al's cat is displaying territoriality by marking his territory by marking territory with urine and scratches.

Territoriality

Territoriality is the defense of the area where an organism lives. The marked area is often regarded as the territory of the animal living there. Al's cat is marking its territory by urinating on the plants and scratching them. Other animals that enter the territory of the cat will be able to know that the territory is not theirs and keep themselves away from the same. If an animal invades the territory of another animal it might get attacked by the animal whose territory it just invaded.

Marking the territory often comes with many perks as the animal is able to lay claim to the food, nest locations, shelter, interactions with mates, etc. The animal is able to monopolize the space in which they live.

Learn more about territoriality here:

brainly.com/question/806271

#SPJ4

5 0
1 year ago
How did you form sediment? Where on the landscape did the sediment form?​
Alex17521 [72]

Answer:

Sedimentary rocks are formed from small pieces of rock. Deltas, bottom of waterfalls, and river banks is where they are formed.

Explanation:

6 0
2 years ago
1. Get a flashlight and switch it on.
Anna [14]

Answer:

Explanation:

1. The beam emitted travels along a straight path and it is divergent in nature. It has its radius increasing progressively as the distance away from the source of light increases.

2. It would be observed that the region where the bulb is positioned has denser light beam. This gets fainter towards the edges of the beam and away from the bulb.

8 0
3 years ago
1. Muscles move tendons attached to bone by performing an action called _______.
REY [17]

1. Contraction

2. Actin

3. Tendons

4. Epidermis

5. Dermis

6. Acne

7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.

For Penn Foster.

5 0
2 years ago
Micah has straight hair. If he is homozygous for the gene that determines straight hair, what is true of his parents?
alexgriva [62]

Answer:

They have contributed same allele for straight hair.

Explanation:

There are two conditions homozygous and heterozygous. In homozygous conditions both the allele of a particular gene is same in an offspring which means the offspring got two same alleles from its parent for a particular gene and if an offspring is heterozygous for a gene that suggests that the parent has contributed two different alleles for that gene in the offspring.

So If Micah is homozygous for straight hair then it can be concluded that his parents have contributed two same alleles for straight hair genes.

3 0
3 years ago
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