What sphere does a dolphon swim

Red–green color blindness is a human X-linked recessive disorder. The normal allele (XB) is dominant to the mutant allele (Xb).

Cerrena [4.2K]

Answer:

C

Explanation:

Turner Syndrom individuals have an aneuploidy (Cells with abnormal chromosome numbers), their sex cells only have one X chromosome.

Paternal genetic apportation is, in this case, XB (Because Tom has normal vison), Jill genotipic is XBXb (Color Blindness is recessive, Xb is not expressed on her fenotipic because the dominant XB make her has normal vision).

Tom only has sperm carrying XB chromosomes because he has normal vision.

Jill Ovules are XB or Xb, She has both alleles.

An Jill's ovule carring the Xb mutante allele is fertilized by sperm lacking sex chromosomes. As a result their Daughter is born withTurner Syndrom and Color Blindness.

This sperm lacking sex chromosomes is the result of a Paternal nondisjunction of sex chromosomes during meiosis

"Bonus"

As color blindness is a X-linked recessive disorder, this case is one of the fewer scenarios when Jim and Tom can have a Daughter with Color Blindness. In a normal case their outspring has these possibilities of having Colorblindness...

Genetic Cross

Jill x Tom

(XBXb x XBY0)

Genotipic Fenotipic

XBXB 25% Females with normal vision

XBXb 25% Females with normal vision

XBY0 25% Males with normal vision

XbY0 25% Males with Color Blindness

75% of their children will have normal vision

100% of females will have normal vision

50% of males will have normal vision

Only males, 50% of them, will have Color Blindness.

8 0

3 years ago

Anne is observing an animal specimen. It has body parts that seem to extend from a central point, just like spokes in a bicycle

stich3 [128]

The organism that you described is most likely a star fish. All its limbs go from the middle and if one is damaged or removed, a new one will grow from the center to replace it.

6 0

3 years ago

. The Clydesdale is a large breed of horse that was used for specific farming purposes, such as plowing and pulling wagons. The

Viefleur [7K]

Answer:

artificial selection/selective breeding

Explanation:

The illustration is an example of artificial selection.

By definition, artificial selection is the deliberate perpetuation of some traits in living organisms simply because the traits are desirable. The organisms are selected because of the traits and allowed to breed either naturally or otherwise in order to ensure that these traits appear or are even consolidated in the offspring of the breeding.

The offspring from selective breeding are expected to combine the desirable traits of the two parents and thus, appear better than each of the parents.

4 0

3 years ago

Read 2 more answers

The picture above shows the early embryos of a human and a chicken. Gill slits and tails are shown in both. What does

IrinaK [193]

Answer: C

Explanation:

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3 0

3 years ago

Scientific thinking: how can scientists assess the health risks of trans fats

Klio2033 [76]

Scientists can access the risks of trans fats by conducting an appropriate experiment which will show the effects of the fats on the human system.
This can be done by feeding known quantity of trans fats to rats over a specific period of time. During the period, the change in the rat weights will be measured on the daily basis and every other changes that is noted in the rats will be noted down. A control group of rats will be included in the experiment; these rats will be given normal rat feeds and not trans fats.
When the period of feeding is completed, the rats will be killed, all the organs in the rats such as liver, blood, brains, kidney, etc will be harvested and these organs will then be biochemically analysed in order to compare the changes in them with that of a normal rats.
Rats are usually used in biochemical research because their systems and that of human is comparable. Any negative effect of trans fats that is noted in the rats will also hold true for human beings.

4 0

3 years ago