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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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∙ 12y ago
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∙ 12y 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?
The observed phenotypic ratio of 3:1 suggests that the genes for body color and wing type are linked in some way, possibly on the same chromosome. This linkage can result in the two genes being inherited together more often than would be predicted by independent assortment, leading to deviations from the expected 9:3:3:1 ratio dictated by Mendelian genetics.
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.
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?
short plant traits were still present in the genetic make-up of the tall plants from the P generation. When two tall plants with hidden short plant traits were crossed in the F1 generation, the recessive short trait was expressed in some of the F2 generation plants due to genetic recombination and segregation of alleles.
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.
What is the vestigial organ in human aliemetary cannal?
The appendix is considered a vestigial organ in the human alimentary canal. It is a small pouch connected to the beginning of the large intestine and is believed to have had a role in digestion in our evolutionary ancestors, but now serves no clear function in humans.
According to Mendel what kind of genes disappear in F1 pea plants?
According to Mendel's principle of segregation, recessive genes disappear in the F1 generation of pea plants when they are crossed with dominant genes. This is because the dominant gene masks the presence of the recessive gene in the phenotype of the offspring.
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).
According to mendel what genes disappear in f1 pea plants?
According to Mendel's laws of inheritance, recessive genes may appear to disappear in the F1 generation of pea plants when crossed with dominant genes. In the F1 generation, only the dominant trait is expressed, masking the recessive trait. However, the recessive gene is not lost but can reappear in subsequent generations.
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.
