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_____ The antler characteristic in moose shows expression in males and no expres

ID: 95228 • Letter: #

Question

_____ The antler characteristic in moose shows expression in males and no expression in females (under normal conditions), as a result this characteristic would have a _____ mode of inheritance. _____ A true dihybrid test cross is carried out with a female that is AaBb and you find that the offspring are present in four equal proportion classes, each of almost exactly equal numbers. This would indicate that these genes are _____. _____ You carry out a three point testcross of the genes A B and C and find that the most common genotype in the offspring are AabbCc and aaBbcc and the least common are the AaBbCc and aabbcc. This would indicate that the mother's genes were originally organized in _____ on her chromosomes with _____ in the middle. _____ You carry out a true dihybrid cross of two black guinea pigs and find a ratio in the offspring of 9 black: 4 cream and 3 brown colored pigs. This would indicate to you that inheritance based on the process of _____ is being manifested. _____ You find that heterozygous individuals for a particular trait clearly show the effect of both of the alleles present in their genotype. The term for this mode of inheritance/gene interaction is called _____. _____ You carry out a true monohybrid cross with two individuals that are yellow coated mice. The F1 individuals are found to occur in the following ratio: 10 yellow: 5 normal individuals. This would indicate to you that the yellow gene is most likely (a)n _____ gene. _____ There is a term used to express that DNA replication has two replication forks associated with each replication bubble. What one word would best describe this feature of the nature of DNA replication? _____ The name of the family of enzymes that are responsible for relieving the DNA strain (super coiling) that occurs downstream of the replication fork is the _____. _____ The key enzyme involved in DNA replication with the following capabilities: 5-3 exonuclease, proofreading, and 3-5 exonuclease activity is _____. _____ The complete functional name for the enzyme that is commonly called Primase is _____.

Explanation / Answer

50) The antler characteristic in moose shows expression in males and no expression in females under normal conditions. As a result this characteristic would have a X-linked recessive mode of inheritance. Since females have two X chromosomes, they are not affected under normal conditions but they are carriers of genes. Males are easily affected since they have only one X chromosome.