Biology 

What is a dominant allele or trait?

Michael Wilson

What is a dominant allele or trait?

A dominant trait is an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele. If an individual carries the same two alleles for a gene, they are homozygous for that gene (aa or AA); this is the case whether the alleles are recessive or dominant.

What does it mean if a trait is dominant?

Dominant: A genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene. A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.

What happens if an allele is dominant?

Dominant alleles show their effect even if the individual only has one copy of the allele (also known as being heterozygous?). For example, the allele for brown eyes is dominant, therefore you only need one copy of the ‘brown eye’ allele to have brown eyes (although, with two copies you will still have brown eyes).

What determines if an allele is dominant or recessive?

The simplest situation of dominant and recessive alleles is if one allele makes a broken protein. When this happens, the working protein is usually dominant. The broken protein doesn’t do anything, so the working protein wins out. A great example of a recessive allele is red hair.

Is anyone dominant for every trait?

No organism has all dominant or all recessive genes. An organism may be pure in certain traits and hybrid others. Remember, that a dominant trait in one kind of organism may be a recessive trait in another organism. 1.

Is height a dominant gene?

Genes aren’t the sole predictor of a person’s height. In some instances, a child might be much taller than their parents and other relatives. Or, perhaps, they may be much shorter.

Is being tall attractive for a girl?

Study after study has found that taller men and women are generally considered more attractive. But although they may be prized as supermodels, tall women do not seem to enjoy the same advantages in the dating game, however – an average height generally seems to be preferred.

Is being tall good for a girl?

Some people go to extremes just to be noticed, and that is not a problem for tall women. People remember tall women, which can be helpful in so many ways. Tall women are perceived to be strong, smart and to possess leadership skills. Research proves that tall women as a group earn more money.

How can I grow 5 inches in 2 weeks?

Draw your arms towards to toes or to the knee flexor and grab your foot or shoe. Pull behind your body and touch your back. This easy and effective exercise will stretch the knee joints and give you additional height. Read more on stretching to grow taller.

Does height come more from mother or father?

Fathers impact the height of their children more than mothers. Tall men usually have taller children. On average, about 60 to 80% of a person’s height depends on their father and mother, the rest is the result of the diet, lifestyle, and health. Besides, not all children from the same parents have the same height.

Can a short child end up tall?

Once your little one reaches the toddler stage, observe their height as compared to their peers. If they seems taller, then he will most likely grow up to be taller than his classmates. If they appear shorter, though, don’t worry. Girls normally stop growing at age 16, while boys reach their adult height by age 18.

Is being 5’7 tall for a girl?

Yes, she would definitely be considered tall. The average height for a woman in the US is 5′ 3″ 1/2. The standard deviation is about 2.7 inches. So a woman who is 5′ 7″ is more than one standard deviation above the mean, so she is taller than at least ~85% of the woman in the US.

When should I worry about my child’s height?

It’s typically considered a medical issue if they’re smaller than 95 percent of children their age, and their rate of growth is slow. A growth delay may also be diagnosed in a child whose height is in the normal range, but whose rate of growth has slowed.

Is being 5’6 tall for a girl?

There is absolutely nothing wrong with a woman being 5’6″. I’m surprised that that’s even considered tall. I would consider 5’6″ average or even short, 5’10″+ is probably the rage for a tall girl. Being tall is great, you have a lot more jokes you can do as a tall person.

Is 6ft 2 tall for a girl?

No, it’s not too tall. You’re as tall as you are and can’t do anything about that. That is the height your body grew to be so that is the height you’re supposed to be at.

Do guys like tall girls?

Apart from being physically attracted to taller women because of their looks and guy’s personal preferences, most guys who like tall girls do so because they are tall as well. They find it physically easier to be in a relationship with women who are the same height as them or slightly shorter.

Is being 5’8 tall for a girl?

The average US woman is 5′4″ or 163 cm so a 5′8″ woman would be considered quite tall. An average African women is 162 cm so it would be considered quite tall too. An average Asian or Latina woman is 5′1″ so 5′8″ would be considered very tall.

Is 5 foot 10 too tall for a girl?

Is a height of 5 feet 10 inches too tall for a girl? – Quora. It’s only “moderately” tall as 11% of women are taller than you. There is no such a thing as “too tall”. Maybe if you are 10416′8″ (3175 meters) or taller but otherwise, no such a thing.

Is 511 tall for a girl?

Whether you decide to call it “short” is solely up to you. But in general, five-eleven is only ever considered tall if it’s a girl who’s that height and even then, it’s only “tall for a girl.”

What’s the best height for a girl?

The Ideal Height in General They consider 4’11” or shorter too short, and 6’0” or taller too tall. For the average woman, the ideal height of a man is 5’11”. Women tend to say that a man of 5’4” or shorter is too short, and a romantic partner over 6’3” is too tall.

What height is the most attractive?

Well, fellas, worry no more, because a new study has revealed 5ft 8in is the ideal height for a man. Dating app Badoo has revealed the most right-swiped heights based on their users aged 18 to 30.

Is 5.5 feet tall for a girl?

Originally Answered: Is 5.5 (1.68cm) feet too tall for a girl? there is no such measure as “Too “ tall or “Too” short . This is your natural size . It simply means you will probably end up with a taller mate than someone that is short but not neccessarily so.

Do men like short girls?

Do guys like small girls? Guys definitely do like short women. Many men will be attracted to their petite and diminutive looks. Short girls also help a guy feel tall, strong, and manly which can be a big attraction for many men.

Do tall guys have bigger?

there’s only one anatomical feature that (very) generally correlates with penis size — and it’s not the hand. In a study of thirty-three hundred Italian men, researchers found that only height was correlated with larger penises, meaning the taller the man, the larger the penis.

Do guys like smart girls?

According to Fisher’s numbers, men desire smart, strong, successful women; 87 percent of men said they would date a woman who was more intellectual than they were, who was better educated, and who made considerably more money than they did, while 86 percent said they were in search of a woman who was confident and self …

Do guys prefer tall or short girl?

Previous studies have found that women generally prefer men somewhat taller than themselves while guys typically go for a shorter gal. This new research revealed that men were taller than their female partners in 92.5% of the actual pairings, which is more often than expected on the basis of chance.

What do tall guys like in a girl?

Even somewhat tall guys often prefer to date average height girls or short girls rather than tall girls. At the end of the day, it depends on a person’s preference. While this does not apply to all men, some men do prefer short girls as they can wear heels without being taller than their man.

Is 5 feet 8 inches short for a guy?

5′8″ is far from short, matter of fact it is tall for a male, especially in Canada and the USA where the average male is well under 5′7″. Come to Canada and you will see that most men are 5′6″ and under and very rare will you see a man 5′8″ and above, so don’t worry, you’re on the tall side.

Is being 5’9 short for a man?

As for men who are 5’9, this height is interesting because it’s considered the average height of the American male, yet in some countries, it’s actually considered tall for a man. A man who stands 5’9 in bare feet can easily pass as 5-11 if he wears shoe lifts.

Science 

What is a dominant allele or trait?

Michael Wilson

What is a dominant allele or trait?

A dominant trait is an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele. If an individual carries the same two alleles for a gene, they are homozygous for that gene (aa or AA); this is the case whether the alleles are recessive or dominant.

What does it mean if a trait is dominant?

Dominant: A genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene. A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.

What happens if an allele is dominant?

Dominant alleles show their effect even if the individual only has one copy of the allele (also known as being heterozygous?). For example, the allele for brown eyes is dominant, therefore you only need one copy of the ‘brown eye’ allele to have brown eyes (although, with two copies you will still have brown eyes).

What determines if an allele is dominant or recessive?

The simplest situation of dominant and recessive alleles is if one allele makes a broken protein. When this happens, the working protein is usually dominant. The broken protein doesn’t do anything, so the working protein wins out. A great example of a recessive allele is red hair.

Why are dominant alleles not more common?

Whether or not a trait is common has to do with how many copies of that gene version (or allele) are in the population. The brown allele of OCA2 is dominant over the not-brown allele. Nearly everyone in most of Africa has brown eyes. This isn’t because brown eyes are dominant over blue and green.

Is anyone dominant for every trait?

No organism has all dominant or all recessive genes. An organism may be pure in certain traits and hybrid others. Remember, that a dominant trait in one kind of organism may be a recessive trait in another organism.

Which of the following is the best definition of a dominant allele?

The allele that will be expressed over other alleles for the same trait.

Do all humans have the same alleles?

Every person has two copies of each gene, one inherited from each parent. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features. Scientists keep track of genes by giving them unique names.

Why are there alleles?

Alleles are also genetic sequences, and they too code for the transmission of traits. The short answer is that an allele is a variant form of a gene. Explained in greater detail, each gene resides at a specific locus (location on a chromosome) in two copies, one copy of the gene inherited from each parent.

Are humans coded?

Fifty years after the discovery of the structure of DNA, scientists from six countries announce today another landmark: they have sequenced the entire genetic code of a human being, to an accuracy of 99.999%.

Who broke the DNA code?

In 1961, Francis Crick, Sydney Brenner, Leslie Barnett, and Richard Watts-Tobin first demonstrated the three bases of DNA code for one amino acid [7]. That was the moment that scientists cracked the code of life.

Who owns the human genome?

NHGRI, an agency of the National Institutes of Health, works with the Joint Genome Institute of the U.S. Department of Energy in coordinating the U.S. portion of the HGP, a 15-year program funded by the government and nonprofit foundations.

How old is our DNA?

Because of the chemical degradation of DNA over time, the oldest human DNA retrieved so far is dated at no more than approximately 400,000 years,” says Enrico Cappellini, Associate Professor at the Globe Institute, University of Copenhagen, and leading author on the paper.

What is the oldest proof of humans?

The oldest known evidence for anatomically modern humans (as of 2017) are fossils found at Jebel Irhoud, Morocco, dated about 300,000 years old. Anatomically modern human remains of eight individuals dated 300,000 years old, making them the oldest known remains categorized as “modern” (as of 2018).

What is the world’s oldest race?

The Sandawe are descended from some of the first humans and shared a common ancestor with the San tribe, who are believed to be the oldest race in the world.

What does Oldest DNA mean?

Ancient DNA (aDNA) is DNA isolated from ancient specimens. Even under the best preservation conditions, there is an upper boundary of 0.4–1.5 million years for a sample to contain sufficient DNA for sequencing technologies.

What are the oldest Indians?

The Clovis culture, the earliest definitively-dated Paleo-Indians in the Americas, appears around 11,500 RCBP (radiocarbon years Before Present), equivalent to 13,500 to 13,000 calendar years ago.

How many full blooded Cherokee are left?

The Cherokee Nation has more than 300,000 tribal members, making it the largest of the 567 federally recognized tribes in the United States.

Are Native Americans still alive?

Today, there are over five million Native Americans in the United States, 78% of whom live outside reservations: California, Arizona and Oklahoma have the largest populations of Native Americans in the United States. Most Native Americans live in small-town or rural areas.

Do Native Americans pay taxes?

Do American Indians and Alaska Natives pay taxes? Yes. They pay the same taxes as other citizens with the following exceptions: Federal income taxes are not levied on income from trust lands held for them by the U.S.

Do Native Americans have body hair?

Yes, they do have facial and body hair but very little, and they tend to pluck it from their faces as often as it grows. Concerning hair, American Indian anthropologist Julianne Jennings of Eastern Connecticut State University says natives grew hair on their heads to varying degrees, depending on the tribe.

How much money do natives get when they turn 18?

In 2016, every tribal member received roughly $12,000. McCoy’s kids, and all children in the community, have been accruing payments since the day they were born. The tribe sets the money aside and invests it, so the children cash out a substantial nest egg when they’re 18.

What rights do Native American have?

With the law of the Indian Civil Rights Act (ICRA) at the time, also called the Indian Bill of Rights, the indigenous people were guaranteed many civil rights they had been fighting for. The ICRA supports the following: Right to free speech, press, and assembly. Protection from unreasonable invasion of homes.

What blood type are Native American?

O group

How do I prove my Native American heritage?

If the end goal for doing such research is to help you determine if you are eligible for membership in a tribe, you must be able to: 1) establish that you have a lineal ancestor – biological parent, grandparent, great-grandparent and/or more distant ancestor – who is an American Indian or Alaska Native person from a …

Do Native Americans get free college?

Native Americans have been only 1% of all undergraduate college students. Despite this small statistic, there are scholarships available through AIS to provide free colleges for Native Americans that are interested in obtaining a degree.