What's so unique about extra-paternity in the Cooper's Hawk vs this phenomenon in other raptors; and what may accound for this/these differences?
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What's so unique about extra-paternity in the Cooper's Hawk vs this phenomenon in other raptors; and what may accound for this/these differences?
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- In crossing grey females of aquarium fish "guppies" with a variegated males in the first generation grey females and variegated males were obtained in a ratio of 1:1. The same ratio was observed in all subsequent generations. How can you explain the results?What behavioral trait(s) prevents interbreeding between different finch species?What effect explains the phenotypic difference in coat color of this individual Arctic Fox from summer to Winter?
- In crossing grey females of aquarium fish "guppies" with a variegated males in the first generation grey females and variegated males were obtained in a ratio of 1:1. The same ratio was observed in all subsequent generations. How can you explain the results? solve from this way Parents: F1: F2:Oldfield mice that live on beaches of the gulf and Atlantic coast of Florida tend to white, wherease their inland relatives are brown. Is the whiteness of the Atlantic beaches at homologous to that of the gulf? Or is it plesiomorphic? How are these hypotheses evaluated?In swordfish, long tails (T), long sword (S), dark scales (D), and the ability to fight (F) are all dominant traits. What possible genotype could a long-tailed, short-sword, light scaled, fighting swordfish have?
- A naturalist is visiting an island in the middle of Lake Superior and observes a new bird species with three distinct types of beaks. Those with short crushing beaks (BB) feed on oak nuts; those with long delicate beaks (bb) pick the seeds from pine cones, and those with intermediate beaks (Bb) feed on both oak nuts and pine cones. (Note: because their beaks are structurally & functionally inadequate, few Bb offspring successfully reach adulthood). Let’s assume that this difference in beak morphology is the result of incomplete dominance in a single gene. In a year in which most of the food available on the island is in the form of hard oak nuts, which of the mated pairs below will produce the most offspring that will be able to survive to adulthood? Use Punnett squares to back up your answer. List all phenotypes and genotypes. Bb x Bb Bb x bb BB x Bb BB x bbFor a particular rodent, black fur is dominant over brown fur, and a long tail is dominant over a short tail. Give the possible genotypes and phenotypes of the possible offspring that could result from the breeding of a homozygous black fur and heterozygous tail rodent and a rodent of heterozygous for both traits.Scurs is an example of a sex-influenced traitin cattle that is dominant in males and recessive in females.A male and a female, neither of which has scurs, producea male offspring with scurs. What are the genotypes of theparents?
- According to the theory of evolution, why have these changes occurred in horse populations over the course of many generations?A danger in computing heritability values from studiesinvolving genetically related individuals is the possibility that theseindividuals share more similar environments than do unrelatedindividuals. In the experiment shown in Figure 24.8, which dataare the most compelling evidence that ridge count is not causedby genetically related individuals sharing common environments?ExplainA classic dataset on wing coloration in the scarlet tiger moth (Paneaxia dominula) shows that coloration in this species is from a single-locus, two-allele system with incomplete dominance. Data for 1715 tiger moths is given: White-spotted WW 1535 Intermediate spots Ww 168 Little spotting ww 12 What are the wing coloration allele frequencies of the scarlet tiger moth? What are the genotypic frequencies?