In humans, the presence of black eye pigment suppresses the presence of brown eye pigment. What can you conclude from this statement?A. The allele for black eye pigment is dominant to the allele for brown eye pigment, and both alleles are variations of the same gene.
B.The allele for brown eye pigment is dominant to the allele for black eye pigment, and both alleles are variations of the same gene.
C. The allele for brown eye pigment is dominant to the allele for black eye pigment, and the alleles are variations of two different genes.

Answers

Answer 1

Answer: The correct answer here is A. You can conclude that the black eye pigment is a dominant trait, and that the allele is dominant, and the brown eye pigment is a recessive trait, or has the recessive allele. In human beings the characteristics that we inherit or display are all determined by the alleles of our parents and whether or not they are dominant or recessive.

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Uncontrolled cell division is known as(1) meiosis
(2) cancer
(3) antibody production
(4) sexual reproduction

Answers

cancer is uncontrolled cell division.

Answer:

2)Cancer

Explanation:

Cancer is a group of diseases characterised by uncontrolled cell division which leads to growth of abnormal tissue.

Why are concentration gradients important to cells

Answers

A concentration gradient is the process of particles or solutes moving through a solution from areas of greater particle concentration to areas of low particle concentration.

The importance of a concentration gradient is that it is what makes osmosis and diffusion to happen. If there were no gradient, there would be no movement of anything from high to low concentrations. Because cells are either hypertonic or hypotonic, nutrients and materials are able to flow either in or out of the cell and life is sustained. If all cells were isotonic, then there would be no flow of nutrients and materials and cells would not survive.

Which type of genetic exchange occurs among bacteria in which dna is carried into a bacterial cell by means of a virus?

Answers

Answer:

Transduction

Explanation:

Among the three types of gene transfer in bacteria, transduction does not require physical contact between the two bacteria cell. Viruses that infect bacteria accidentally move pieces of chromosomal DNA from one bacterium to another. These viruses that infects bacteria are called bacteriophages.

Simply put, transduction is a process of genetic recombination in bacteria which involves the incorporation of the genes of a host cell (bacterium) into the genome of a viral cell (bacteriophage) and then conveyed to another host cell when the bacteriophage infects it. The process of transduction is of two types; generalized and specific depending on whether any gene or specific gene is transduced respectively.

The aim of these viruses when they infect bacteria cell is to harness the ability of bacteria to replicate, transcribe and translate their genetic material and use it to procreate into many virons or complete their viral particle.

When the hormone insulin is released into the bloodstream, what form of cell-to-cell signaling is being used?a.endocrine

b.paracrine

c.neuronal

d.contact-dependent?

Answers

Endocrine. Because insulin is a hormone that are produced in the endocrine gland such as pancreatic gland

The number of hydrogen atoms in 6NH3 is

Answers

Answer: 18

Explanation:

This molecule, called ammonia, is a group of atoms held together by chemical bonds. In this example, the atoms (smallest pieces of matter) are nitrogen (N) and hydrgoen (H)

The number 6 indicates the number of moles of the NH3 molecule. A mole is the unit of measurement used to measure the number of atoms or molecules. One mole is equal to 6.02214078×10^23 of the same things.

And since there are 3 Hydrogen atoms found in each mole of ammonia, and there are 6 moles of amminia, then 6 x 3 = 18 atoms of hydrogen.

No 6 is common for N and H. 3 is only for H(Hydrogen).

For finding the number of hydrogen atoms we should multiply 6 with 3

So, 6*3 = 18. So there will be 18 hydrogen atoms in 6NH₃

What is the significance of an eyespot in the cell of euglena?

Answers

The main significance of an eyespot in the cell of euglena is the detection or sensing of light and then orienting the organism away from or towards the light. Euglena is basically a genus of a single celled flagellate. I hope that this is the answer you were looking for and it has come to your help.

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In humans, having freckles is the result of a dominant gene, and not having freckles is a recessive trait. If a freckled man who is homozygous for this trait has a child with a woman who does not have freckles, which of the following best describes how their child would most likely appear?A. Their child would not have freckles if the father passes on the recessive allele.B. Their child would have freckles.C. Their child would not have freckles.D. Their child would have freckles since the mother is a carrier for freckles.Can someone explain this for me ?