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Alex73 [517]
4 years ago
14

Which role do gametes play in reproduction?

Biology
2 answers:
Ad libitum [116K]4 years ago
5 0

Answer:

C.They carry half of each parent’s chromosomes.

Lesechka [4]4 years ago
3 0
<span>C. Gametes are the sex cells, and each (sperm and ovum) contain half of the parent's genetic material. These cells will fuse to produce a zygote, which will usually contain the full number of genes required by an organism to live. If there is a chromosomal abnormality, such as a gamete with an extra chromosome, the offspring can either die in development or sometimes be born with physiological and/or developmental difficulties. An example of this phenomenon is trisomy 21, also known as Down Syndrome, in which the 21st chromosome bears 3 copies instead of the regular 2.</span>
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Describe a drawback of using sustainable agricultural practices to produce crops.
e-lub [12.9K]

A major drawback of using sustainable agricultural practices to produce crops is scarcity of land for agriculture.

<h3>What is a drawback of sustainable agricultural practices?</h3>

Sustainable agricultural practices are those agricultural practices that ensure the safety of the natural environment. They are those agricultural practices that do not have negative impacts on the environment.

A major drawback of using sustainable agricultural practices to produce crops is scarcity of land for agriculture which leads to unsustainable practices such as continuous cropping.

Learn more about sustainable agricultural practices:brainly.com/question/1315410

7 0
3 years ago
Which of the following is found in RNA nucleotides, but NOT in DNA nucleotides?
solmaris [256]

Answer: uracil is found in RNA nucleotides, but NOT in DNA, i hope that helps

Explanation:

7 0
3 years ago
In a certain population of rabbits, the allele for brown fur is dominant over the allele for white fur. If 20 out of 100 rabbits
Sidana [21]
Brown fur (p) is dominant
White fur (q) is recessive
p2 + 2pq + q2 = 1
If 20 out of 100 have white fur (qq only), then q2 = 20% = 0.20
Recessive allele (q) = sr(q2) = sr(0.2)
--> q = 0.447 = 44.7%
5 0
3 years ago
Read 2 more answers
Match the following.1. Sudden, transient disturbances of brain function marked by 2. Loss of muscle strength; breakdown of acety
STatiana [176]

Answer:

.1. Sudden, transient disturbances of brain function marked by = a) seizures

2. Loss of muscle strength; breakdown of acetylcholine, a = b) neurotransmitter

3. Degeneration of nerves in the brain leading to tremors, shuffling gait, and muscle (mask-like facial expression); dopamine is deficient in the = c) brain

4. Deterioration of mental capacity (dementia) beginning in middle age; cerebral cortex atrophy, microscopic = d) neurofibrillary tangles

5. Unilateral facial = e) paralysis.

Explanation:

1. Epilepsy: Epilepsy is a disease that is characterized by sudden, transient disturbances of brain function which includes seizures. Epilepsy could be caused by genetic reasons or a damage or injury to the brain. The condition of epilepsy can not be cured but it can be effectively managed. Symptoms of epilepsy includes: Headaches, foaming at the mouth, disorientation e.t.c

2. Myasthenia gravis: This is a disease is occurs due to the breakdown of a neurotransmitter called Acetylcholine. This results in the loss of strength in the muscles of the body. This disease can only be managed through the usage of drugs and therapy, it cannot be cured.

3. Parkinsons disease: This is a neurological diseases that involves the

degeneration of nerves in the brain leading to tremors, shuffling gait, & muscle stiffness (mask-like facial expression), tiredness e.t.c. Parkinson's disease can only be managed effectively through the use of medications and therapy, it cannot be cured.

4. Alzheimer's disease: This is a disease that involves the progressive deterioration of mental capacity (dementia) beginning in middle age and cerebral cortex atrophy. Alzheimer's disease leads to the formation of microscopic neurofibrillary tangles. There is no cure for Alzheimer's disease for now but it can be managed using cognition enhancing drugs as well as effective therapy.

5. Bell palsy : It can also be referred to as unilateral facial paralysis. It is a disease whereby one side of the face is paralysed and weakened. Bell palsy causes the side of the face to fall or become droopy. Bell palsy can be managed through the usage of drugs, and therapy.

6 0
3 years ago
Read 2 more answers
The cell wall in plants is made of CHITIN. Correct and rewrite the following
soldi70 [24.7K]

Answer:

See below

Explanation:

The correct statements can be two. Either:

1) The cell wall of plants is made up of cellulose

2) The cell wall of fungi is made up of chitin.

3 0
3 years ago
Read 2 more answers
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