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kari74 [83]
2 years ago
7

Which of the following is a distinguishing feature of prokaryotes compared with eukaryotes?A. The absence of membrane bound orga

nelle in prokaryotic cells.B. Smaller and less complicated eukaryotic cellsC. The presence of ribosomes in eukruotic cells onlyD. The method of nutrition
Biology
1 answer:
amm18122 years ago
6 0
The answer would be A.

Eukaryotes contain a membrane bound nucleus where they store all their genetic material such as DNA. DNA in prokaryotes is free floating within the cytoplasm.
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Imagine a genetic counselor working with a couple who have just had a child who is suffering from Tay-Sachs disease. Neither par
Alexxx [7]

Answer:

C. "Because you have had one child with Tay-Sachs, you must each carry the allele. Any child you have has a 25% chance of having the disease

Explanation:

Tay-Sachs disease is an autosomal recessive disorder that means a child will acquire the phenotype or we can say disease only when both the alleles which cause disease are present in the child.

Here, in this condition neither parent has Tay-Sachs but they gave birth to a child who is suffering from the disease then it simply means that both the parents are carrier of this disease i.e. they both are heterozygous.

The cross and probability of healthy and diseased child is shown as under:

                          Mother        Father

Parents                    Tt               Tt

                              /        |          |     \

Off-springs         TT      Tt       Tt      tt

<u>Out of these 4 probable off-springs only 3 with genotype TT, Tt & Tt  will be healthy while the 1 with genotype tt will be diseased.</u><u> </u><u>So, the probability of diseased child is 1/4 which is 25%. </u>

Also, the birth of children is an independent event so if one child has already been born with this disease then it doesn't mean that the next 3 children will be healthy for sure i.e. birth of first child cannot influence the next child. In short we can also say that in the next birth, there is still 25% chance of the child being born with this disease because previous birth has nothing to do with next birth.

7 0
3 years ago
Gregor Mendel demonstrated that traits are passed from parents to offspring independently of one another under all circumstances
inn [45]

Answer;

A.) a law

Explanation;

-A law is a statement based on repeated experimental observations that describes some phenomenon of nature. Proof that something happens and how it happens, but not why it happens.

- A Theory is a well-substantiated explanation acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation.

-A Hypothesis is a proposed explanation for a phenomenon made as a starting point for further investigation.

8 0
3 years ago
Read 2 more answers
Axons of the spinal nerve that innervate the ventrolateral body surface, structures of the body wall, and limbs make up the
makvit [3.9K]

Axons of the spinal nerve that innervate the ventrolateral body surface, structures of the body wall, and limbs make up the Ventral ramus.

The anterior portion of a spinal nerve is known as the ventral ramus. Shortly after a spinal nerve exits the intervertebral foramen, it branches into the dorsal ramus, the ventral ramus, and the ramus communicans. These contain information that is both sensory and motor.

The sensory and motor fibres that innervate the muscles, joints, and skin of the lateral and ventral body walls as well as the extremities are carried by the spinal nerves' ventral ramus. They continue to be separate from one another throughout the thoracic region and each innervates a small section of muscle and skin along the sides, chest, ribs, and abdominal wall.

Learn more about ventral ramus here:

brainly.com/question/19325146

#SPJ1

3 0
2 years ago
What do the results of the agar blocks indicate about the relationship between cell size and diffusion rate
Natasha_Volkova [10]

Answer:

Knowledge of the relationship between the size (volume) of cells and their surface area helps explain the process of diffusion. Agar blocks and cells with the largest surface area to volume ratio (the smaller cubes) have the highest diffusion rates.

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following describes the frequency, graphed as a valued of a population, which results as a bell-shaped curve?
Oliga [24]
That is called A. <span>Circular distribution.</span>
8 0
3 years ago
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