Select the correct phrases: (Prezygotic barriers / Postzygotic barriers) are reproductive isolating mechanisms that occur after a zygote has been formed. An example would be (an infertile hybrid / gametes that cannot fuse).

Select all the true statements about the cell in the drawing. Group of answer choices 1. this cell is haploid 2. this cell has 3 chromosomes 3. this cell is diploid 4. this cell has unduplicated chromosomes 5. this cell has 3 homologous pairs 6. this cell has 6 chromosomes 7. this cell has 12 chromosomes 8. this cell has duplicated chromosomes 9. this cell has 6 homologous pairs 10. this cell has no homologous pairs

Modern bananas originated from a cross between a tetraploid banana species and a diploid banana species. The product of this cross was the triploid Cavendish banana strain, a sterile hybrid that is only grown asexually. Recently, the Panama fungus has been observed more frequently parasitizing the Cavendish banana, and scientists claim that this type of banana is on the brink of extinction. Which of the following provides the best explanation of the scientists’ claim regarding the threat to the Cavendish banana? *   The triploid genome of the Cavendish banana makes it susceptible to the negative impact of recessive alleles.       Having three of each chromosome interferes with normal function of the cells and increases the likelihood of contracting a disease.       The lack of genetic diversity of the Cavendish banana decreases the chance that a variation exists in the population that is immune to the fungus.       Asexual reproduction…

Examine Table 26.1, which lists different types of reproductiveisolating mechanisms. Try to come up with at least one example of anorganism that is reproductively isolated from other species by each ofthe mechanisms listed in the table. Are some groups of organismsmore likely to exhibit one type of mechanism than another? Give someexamples.