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Oduvanchick [21]
2 years ago
11

What process can account for the phenomenon wherein a normal xy male produces a sperm carrying two y chromosomes?.

Biology
1 answer:
Rasek [7]2 years ago
7 0

Answer:

second division nondisjunction

Explanation:

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Describe how proteins can speed up chemical reactions and how they can help transport oxygen throughout the body.
Leni [432]

Answer:

Proteins can be catalysts which help to reduce the energy used in a chemical reaction or speed it up. Proteins can help carry oxygen throughout the body in the form of hemoglobin

Explanation:

4 0
3 years ago
Why would albert's symptoms be localized only to the right side of his body?
Mnenie [13.5K]

Answer:

This question is from a case study which i went through to find the answer of the question. In the case study Albert suffered from a stroke in which his left side of the brain was affected. However, the symptoms were present in the right side of the body.

This actually happens when a person experiences stroke his symptoms are present only in single side of the body because of the rupture of the blood vessels in specific side.

As we know that when  descending nerve tracts intersect each other, the right side of the body is controlled by left side of the brain and left side of the body is controlled by the right side of the brain.

Therefore, when the symptoms of Albert were localized in only right side, it was concluded that Albert had suffered the damage in right side of the brain.


Hope it helps!

5 0
3 years ago
Explain how microbes are useful to us?
FrozenT [24]

Answer:

Explanation:

1. Microbes play defense. The oodles of microbes that live on and inside us protect us from pathogens simply by taking up space

2. Microbes boost the immune system

3. Microbes protect us from auto-immune diseases.

4. Microbes keep us slim. Microbes play an important role in our body shape by helping us digest and ferment foods, as well as by producing chemicals that shape our metabolic rates.

5. Microbes detoxify and may even fight off stress.

4 0
3 years ago
Consider the characteristics of moss and fern life cycles. Which of the following sets of statements is true?A. The gametophyte
Paraphin [41]

Answer:

E) In both mosses and ferns, moisture is required for sperm to reach the egg. In mosses, gametophyte is the dominant stage of the life cycle. In ferns, the sporophyte is the dominant stage of the life cycle.

Explanation:

The *sporophyte of fern plant is dominant over the smaller and nutritionally independent gametophyte*. The sporophytes are photosynthetic, long-lived and highly branched. *Sperm cells of fern possess whip-like flagella in their cell walls that enable moisture swim to reach the egg*

*In Mosses,the gametophyte is more prominent (dominant)* just like in lower plants. These organisms *require external water(moisture) in the form of dew or rain to move their sperm during fertilization*.

Therefore, *In ferns, the sporophyte is dominant over the gametophyte*, while *in mosses,gamatophyte is dominant over the sporophyte.* Both require moisture for sperm to reach egg.

5 0
3 years ago
Read 2 more answers
Which type of phagocytic disorder (formerly known as Job syndrome) occurs when white blood cells cannot initiate an inflammatory
Ber [7]

Answer:

Hyperimmunoglobulinemia E Syndrome

Explanation:

Hyperimmunoglobulinemia E Syndrome or Job syndrome is an immunodeficiency disorder in which the white blood cells are incapable of producing an inflammatory response to infectious organisms. It is an autosomal dominant disorder. It is characterized by recurring bacterial infections, specially of lung and skin. There are also other symptoms like abromalities in vascular or skeletal system and elevated IgE level.

Symptoms like frequent formation of pus pockets in skin, lungs or joints usually begin during infancy. These pus pockets are formed due to infection by staphylococcal bacteria. Treatment usually consists of antibiotics to fight infection and anti histamines to relieve the symptoms like rash and itching. Sometimes drugs can also be administered to modify immune system.  

5 0
3 years ago
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