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When flies having a gray body and normal wings were crossed with flies having a black body and vestigial wings the F2 generation showed a phenotypic ratio of 3 1 and not 9 3 3 1?
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∙ 11y ago
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∙ 11y ago
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What are your chances of conceiving twins after you miscarried twins?
I was told by my doctor, that the chances of having multiples is very likely once you've conceived multiples in the past. And if you have multiples, they will skip a generation and then their kids will likely have multiples. Pretty cool.
What are the odds of a child having the same birthday as the mother?
Believe it or not it happens very often for example three generations of women in my family have the same birthday i am the third generation I've seen it a lot more too so the odds are high. I agree, I am born on my mother's birthday and in school I had several friends who were also born on their mother's birthdays.
What is the probability that a random couple with three children will have at least two boys?
If we consider there is a 50% chance for having a boy and 50% for having a girl*, there is : - 12,5% chance of having no boys; - 37,5% chance of having 1 boy; - 37,5% chance of having 2 boys; - 12,5% chance of having 3 boys. Therefore, there is 50% chance of having at least two boys. *The odds are more like 51% for having a boy and 49% for having a girl, but it doesn't really matters.
How many syllables does the word having have?
The word having has 2 (two) syllables.
What is the slope of a line having no steepness?
A straight horizontal line is a line having no steepness.
When flies having a gray body and normal wings were crossed with flies having a black body and vestigial wings the F2 generation showed a phenotypic ratio of 3 1 and not 9 3 3 1Which of the followi?
genes for body color and wing size were on the same chromosome and inherited together
What word describes an organ having no known use?
A vestigial organ is one having no known use.
Which trait is most likely linked to having a curved wing in the fruit fly?
The vestigial gene is the trait most likely linked to having a curved wing in the fruit fly. Flies with vestigial wings cannot fly.
What is the vestigial organ in human aliemetary cannal?
The appendix, which is located at the juncture of the small and large intestine.
How are vestigial structures not removed by natural selection?
Yes, because vestigial structures can be harmful. For example, some humans are now born without an appendix which ensures they will not be killed via appendicitis. Having a smaller expression of a vestigial structure, like having a smaller appendix, saves on the energy wasted in maintaining an unneeded structure.
In the P generation a tall plant was crossed with a short plant No F1 plants were short Short plants reappeared in the F2 generation because?
A cross between members of the F1 generation (Tt x Tt), results in the genotypic ratio of 1TT:2Tt:1tt genotypes in the F2 generation. Because the tall allele is dominant, the phenotypic ratio would be 3 tall:1 short in the F2 generation.
What percent chance of having offspring having white hair when a purebred black rabbit is crossed with a hybrid black rabbit?
50%
Is a horse on tiptoes?
Yes, horses walk on the toenails of their center toes of each foot (the other 4 toes on each foot having become vestigial).
What are the odds of having twins when you aren't a twin yourself?
well it might be that every other generation has twins, and your not in the generation but your kids will be twins because YOUR generation was skipped
How is a snapdragon an example of an incomplete dominance?
A snapdragon is an example of an incomplete dominance because when a snapdragon plant having red flowers is crossed with another plant having white flowers, all F1 plants bear red flowers but in F2 generation, the plant population segregates in to 1 red : 2 pink : 1 white flowered plants ratio.
How many vestigial organs in your body?
The answer to questions such as this hinges on a definition. What is vestigial? Experts disagree about whether some organs are vestigial, so it is not possible to answer the question as asked without listing the candidates and deciding whether each is vestigial. Perhaps the best example is the appendix. While some consider it to be vestigial, i.e. to be a reflection of our evolutionary past but to have no current function, others consider it to be an important reservoir for friendly bacteria that aid in digestion. Another example is nipples in males. While they are not essential to the survival of the species, their stimulation appears to trigger the release of hormones that are important in pair bonding. Having said that, here's a list of candidates. You count them, and you decide which ones are vestigial. Nictitating membrane (third eyelid) Wisdom teeth Subclavius muscle Male nipples Appendix Plantaris muscle Vomeronasal organ Palmaris muscle Erector pili Body hair Pyramidalis muscle Epoophoron (aka parovarium)
Have you ever heard anyone say that having blue eyes is a genetic disfunction passed down from generation to generation and is a chemical imbalance?
Having blue eyes is neither a genetic dysfunction nor a chemical imbalance. That is a new one. Genetic dysfunctions and chemical imbalances are not generally passed down from generation to generation. Whoever told you they were has never heard of Charles Darwin and his Theory of Evolution.
