Which of the following statements would be true of ahuman trait that has high heritability in a populationof one country?a. The phenotypic difference within monozygotic twinpairs would be about the same as the phenotypic differences among members of dizygotic twin pairs.b. Very little phenotypic variation exists betweenmonozygotic twins but high variability exists between dizygotic twins.c. The trait would have the same heritability in a population of another country

If blonde hair color is a recessive trait and one parent is heterozygous for the trait and the other parent is heterozygous for the trait, what are the chances that their offspring will have blonde hair?A. 25% (one in four)B 50% (two in four)C. 75% (three in four)D. 100% (four in four) Provide explanation or solution

You are examining a population of snakes in which 20% of the individuals exhibit the recessive phenotype for albinism. If albinism is exhibited only by the genotype aa, how many snakes out of a population of 100 would you expect to CARRY the albinism allele (so be Aa), but be normal color?

We are making a hypothetical dog breed: Worgi (wolf, corgi mix). Assume ear length and tail shape in Worgis are each controlled by a single gene and long ears and a curly tail are dominant phenotypes. Alleles and phenotypes for your drawings: L-long ears, l-short ears, C-curly tail and c-straight tail   A. Predict the gametes that a Worgi with long ears and a curly tail will produce if ear length and tail shape are linked traits.  B. Predict the gametes that a Worgi with long ears and a curly tail will produce if ear length and tail shape are unlinked traits.  C. Draw a homologous pair separating during anaphase I. Label the ear length and tail shape gene. Explain why the gametes from part A and B are similar and/or diffferent.

. A chicken breeder is working with a population in whichthe mean number of eggs laid per hen in one month is 28and the variance is 5 eggs2. The narrow-sense heritabilityis known to be 0.8. Given this information, can the breeder expect that the population will respond to selectionfor an increase in the number of eggs per hen in the nextgeneration?a. No, applying selection is always risky and a breedernever knows what to expect.b. No, a breeder needs to know the broad-senseheritability to know what to expect.c. Yes, since the narrow-sense heritability is close to1 (0.8), then we would expect selective breeding couldlead to increased egg production in the next generation.d. Yes, since the variance is greater than 0.e. Both c and d are correct.

Imagine you have a VERY large garden consisting of thousands of red-flowered individuals (recessive homozygotes rr) and just a few dozen white-flowered plants (genotypes either RR or Rr) of the same species. The garden is isolated from all other flower populations. What do you think will happen to the frequency of the white-flowered plants in your garden from year to year, assuming that the two phenotypes survive and reproduce equally well, that flower color is inherited as a dominant trait, and that pollinating insects make no distinction in flower color? Why?

Consider a gene with two alleles, G and g, and heterozygote superiority. Which statement about the fitness of each genotype is correct? A. The fitnesses of the three genotypes would be the same B. The fitness of gg would be greater than that of wither Gg or GG C. There is not enough information to tell D. The fitness of GG would be greater than that of either Gg or gg E. The fitness of Gg would be greater than that of wither gg or GG

In a populationof manatees, short whiskers are recessive to long whiskers. There are estimated to be only 4387 manatee left in the world. Of these, 827 have short whiskers. What is the frequency of homozygous recessive individuals?

Ectrodactyly, also known as “lobster claw syndrome,” is a recessivedisorder in humans. If a phenotypically unaffected couple producesan affected offspring, what are the following probabilities?A. Both parents are heterozygotes.B. An offspring is a heterozygote.C. The next three offspring will be phenotypically unaffected.D. Any two out of the next three offspring will be phenotypicallyunaffected

Alleles that show incomplete dominance will represent:  Choose oneAnswer: A . heterozygotes that have a phenotype intermediate between the dominant and recessive alleles.    B. homozygotes that have a genotype like the recessive allele    C. homozygotes that have a phenotype intermediate between the dominant and recessive alleles.   D. heterozygotes that have a genotype like the dominant allele