Title: Microsoft Word - Diploid and Haploid Worksheet Answer Key.docx Author: Jennifer Johnson Created Date: 3/26/2014 4:37:28 PM Adults measure about 13 cm (5.1 in) in total length, with a 15 cm (5.9 in) tail, and weigh an average of 90 g (3.2 oz), with males being slightly larger than females. Other organisms have more than two copies of each - they have more chromosomes but don’t necessarily have more genes, just more copies of each gene. Number You have entered the number of chromatids. 221 b. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39. As in humans, sex chromosomes determine sex: XX in females and XY in males. Mice have 20 chromosomes in their haploid genome (thus 40 chromosomes in all). The diploid number for Norway rats is 42. No. Comparison of the rat genome to those of the human and mouse also opens a new and unique window into mammalian evolution. A segment of chromosome responsible for a particular characteristic? 242 The plains viscacha rat is a moderately-sized rat, with a large head, long tail, and short ears. Answer. The plains viscacha rat or red vizcacha rat, which actually is not a rat but related to guinea pigs and chinchillas has a total of 102 chromosomes due to its tetraploidy chromosomes (4N). What is the total number of chromosomes present in the cell during metaphase I of meiosis? Do angiosperms have the same number of chromosomes? What is the number of chromosomes for ptypdactylus gecko and Bunopus tuberculatus? What is the difference between extempore speech and lecture. a. chromosomes do not have to replicate during asexual reproduction. Unanswered Questions. How many chromosomes do rats have? Find answers now! A diploid somatic cell from a rat has a total of 42 chromosomes (2n = 42). 02 Development 2. Flashcards. ... Zygote. A fertilized egg that contains chromosomes from both a sperm and an egg. What are the steps in binislakan folk dance. How many chromosomes do humans have? The somatic cell of a rat contains 42 chromosomes (2n 42). The list of organisms by chromosome count describes ploidy or numbers of … How many chromosomes do rats have? The rodent lineage, which gave rise to the rat and mouse, and the primate lineage, which gave rise to humans, diverged about 80 million years ago. How many chromosomes and how many DNA molecules would the secondary spermatocyte of this rat have? a. The gene order of the genomes of mice and humans are conserved (synteny) although there are rearrangements, several per chromosome. 1 Questions & Answers Place. What did you have to do to determine that it was the Y ... many species of rat snake, too many to list here. Humans have 23 pairs of chromosomes, while rats have 21 and mice have 20. STUDY. I've not come across any specific studies that contain that sort of data it's few and far between some species of deer and rats (Rattus sensu for example) have 46 chromosomes. So which organism has the most? When was The Calcutta Chromosome created? Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. Learn. A large team of researchers, including a computer scientist at Washington University in St. Louis, has effectively completed the genome sequence of the common laboratory brown rat, Rattus norvegicus.