Question

why would for e.g a brown color allele not have the highest frequency in any given...

why would for e.g a brown color allele not have the highest frequency in any given population despite it being a dominant allele?
Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The dominant or recessive property of an allele is not an indicator of the 'fitness' of the allele in real world populations. Allele frequencies are the result of a balance between selection and mutation, which produces the observed allele frequencies. If a particular allele is selected against, for any reason, ranging from sexual selection to predation, then the frequency of that allele will be naturally low in the population, even if the allele is dominant.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In mice, a mahogany coat color allele is dominant over the tan coat color allele. In...
In mice, a mahogany coat color allele is dominant over the tan coat color allele. In a population of mice, the frequency of the allele for mahogany coat color is 0.19 and the frequency of the allele for tan coat color is 0.81. What would the genotypic frequencies be if the population is in equilibrium? ___=Frequency of homozygous dominant individuals ___=Frequency of heterozygous individuals ___=Frequency of homozygous recessive individuals How many individuals would you expect of each genotype in a...
3) In general, p = allele frequency of the dominant allele and q = allele frequency...
3) In general, p = allele frequency of the dominant allele and q = allele frequency of the recessive allele. Using the product and/or sum rule(s), use these variables (p and q) to determine the probabilities of an individual in the next generation being: a) Homozygous dominant (A dominant allele (A) AND another dominant allele (A))? b) Homozygous recessive (A recessive allele (a) AND another recessive allele (a))? c) Heterozygote (Aa OR aA)? 4a) In a population in Hardy-Weinberg equilibrium,...
In guinea pigs, the allele for black coat color (B) is dominant over the allele for...
In guinea pigs, the allele for black coat color (B) is dominant over the allele for white coat color (b). In an ideal mouse population exhibiting Hardy–Weinberg equilibrium of 31 guinea pigs, 2 are homozygous dominant, 11 are heterozygous, and 18 are homozygous recessive. What is the frequency of the recessive allele in the population? Show all work. A. 0.88 B. 0.12 C. 0.76 D. 0.64   
Within a population of butterflies, wing color can be brown or yellow. One gene with two...
Within a population of butterflies, wing color can be brown or yellow. One gene with two alleles, dominant brown (B) or recessive yellow (b). In this population, 40% (0.40) of all butterflies are yellow. Given this information, determine the allele frequencies for both the B and b alleles. Show all of your calculations clearly.
16. One summer a group of scientists were studying fur color in a population of rabbits...
16. One summer a group of scientists were studying fur color in a population of rabbits that had either brown or white fur, where the brown fur was caused by a dominant allele (B). They noticed that white rabbits stood out more on the forest floor and where more likely to be captured by hawks in the area. In the population, the scientists counted 210 homozygous dominant rabbits, 190 heterozygous rabbits and 100 homozygous recessive rabbits. What is the dominant...
4 In a population of peas, the frequency of the dominant allele for a yellow seed...
4 In a population of peas, the frequency of the dominant allele for a yellow seed is 0.29 and the frequency of the recessive allele for a green seed is 0.71. What would the genotypic frequencies be if the population is in equilibrium? _____ = Frequency of homozygous dominant individuals _____ = Frequency of heterozygous individuals _____ = Frequency of homozygous recessive individuals How many individuals would you expect of each genotype in a population of 350 peas? _____ =...
In a city park, it is noticed that within a population of brown squirrels there are...
In a city park, it is noticed that within a population of brown squirrels there are some white or albino phenotypes.  The city council decides that this would be a terrific tourist attraction and passes a law forbidding anyone to hunt, capture, move, or kill any of the albino forms of the normally brown squirrels.  Brown coat color indicates the ability to produce the pigment melanin, which is a product of a dominant allele, B.  The albino coat color or absence of melanin...
In a population of mice under Hardy-Weinberg conditions, black coat color is completely dominant to brown...
In a population of mice under Hardy-Weinberg conditions, black coat color is completely dominant to brown coat color. Only 4% of the population have brown coats. What proportion of the population is heterozygous?
Neurofibromatosis is an autosomal dominant disease. The frequency of the recessive allele is 0.98. In population...
Neurofibromatosis is an autosomal dominant disease. The frequency of the recessive allele is 0.98. In population of 2250 how many individuals would you expect to not have the disease?
The frequency of a dominant allele A in a population is P = 0.4, and the...
The frequency of a dominant allele A in a population is P = 0.4, and the rate of a recessive allele a at the same locus is q = 0.6. Assuming that allele a is fatal in double dose (individuals with genotype aa die in the fetus). a) What happens with the frequencey to the a-allel in the long term? b) Why will a never completely be gone if the population has infinite size?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT