g Has 39 päirs of chromosomes, a wolf has 39 pairs of chromosomes, but a red fox has only 17 pairs of chromosomes. Dog-wolf hybrids are well-known. How many chromosomes would you expect the hybrid to have? Would these chromosomes be homologous pairs? Dog-fox hybrids have occasionally claimed to occur, but none have ever been confirmed. If such a hybrid should ever be found, how many chromosomes would it have? Would these chromosomes be in pairs? Explain why or why not.

The following is the diagram of a pair of chromosomes. Identify a gene locus, a pair of alleles, and three pairs of genes.

In the world of Weeping angels, those with pointy wings are (A_), while those with round wings are (aa). In the efforts to explore this extraordinary species, you wish to determine the genotype of a pointy winged angel. Luckily, you have trapped a round winged angel that you can cross your pointy winged angel with. If the pointy winged angel is homozygous what phenotypic ratio do you expect from their offspring? (Pointy wing: round wing) Group of answer choices a. 1:0 b. 2:1 c. 1:1 d. 3:1

Species I has 2 n = 8 chromosomes and species II has 2 n = 14 chromosomes. What would the expected chromosome numbers be in individuals with the following chromosome mutations? Give all possible answers. Q. Autotetraploidy in species II

The answer to Question 23 will be different if R and T are very far apart on their chromosome (and if that is true, then automatically r and t will also be very far apart on their chromosome). If it undergoes meiosis, there are four genotypes that can be produced, not just two. Why? What are the four genotypes? Which represent recombinant chromosomes? Which represent parental chromosomes? Look at Figure 16-18 for help if you need it.

Controlling the overgrowth of invasive aquatic vegetation is asignificant problem in the waterways of most U.S. states.Originally, herbicides and dredging were used for control, butin 1963, diploid Asian carp were introduced in Alabama and Arkansas.Unfortunately, through escapes and illegal introductions, the carpspread rapidly and became serious threats to aquatic ecosystems in45 states. Beginning in 1983, many states began using triploid, sterilegrass carp as an alternative, because of their inability to reproduce,their longevity, and their voracious appetite. On the other hand, thisgenetically modified exotic species, if not used properly, can reduceor eliminate desirable plants and outcompete native fish, causing moredamage than good. The use of one exotic species to control otherexotic species has had a problematic history across the globe, generatingcontroversy and criticism. Newer methods for genetic modificationof organisms to achieve specific outcomes will certainly becomemore…

The Oregon creeping vole, Microtus oregoni, has a very unusual meiosis?. In this rodent, males are XY, while females are XØ (that is, females have only a single X chromosome). During female meiosis, eggs that receive no maternal X chromosome do not mature, so females only produce eggs with exactly one X chromosome. As chromosome content is unchanged from generation to generation, M. oregoni males (who are XY) must deliberately nondisjoin their sex chromosomes. 1a) What types of sperm would M. oregoni have to produce (considering only their sex chromosome content) so that progeny get the right chromosomes? Remember, no inviable combinations are normally produced. 1b) Draw a Punnett square for the sex chromosomes in a M. oregoni mating, with the gametes that are actually produced. Indicate the sex of each offspring. 1c) From which parent do M. oregoni get their X chromosomes? Circle one. Mom Only Random Mom or Dad Dad Only

Species I is diploid (2 n = 8) with chromosomes AABBCCDD; related species II is diploid (2 n = 8) with chromosomes MMNNOOPP. What types of chromosome mutations do individuals with the following sets of chromosomes have? Q. AAABBCCDD