Answers History, 26.06.2020 16:01 A Punnett square is a tool used by geneticists to determine the probability of traits in offspring from a mating of two individuals. The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. All possible genotypes for the haploid female gametes are … Weegy: D. the actual results of a genetic cross. All girls in the Punnett square (all two of them) have at least one dominant X allele, which for the heterozygous case masks the recessive allele. the actual results of a genetic cross. the genotypes of the offspring. d. c. J. Phelan, in Brenner's Encyclopedia of Genetics (Second Edition), 2013 Abstract. b. determine genotypic ratio. A. This means that there is a 75% probability that an offspring will have the dominant trait and a 25% probability that an offspring will have a recessive trait. Tall or short d. Be sure that you include the ratios of the genotypes (and the words used to describe those alleles) and phenotypes of the characteristics. Since they both have 4 gametes being crossed, I don't understand why one Punnett square is larger than the other? It is named after Reginald C. Punnett, who devised the approach. Here we see that there are three ways for an offspring to exhibit a dominant trait and one way for recessive. it won't show the actual results, just the 4 results that is could be. Allow 1 credit for correctly completing the Punnett square as shown below. A Punnett square, devised by the British geneticist Reginald Punnett, is useful for determining probabilities because it is drawn to predict all possible outcomes of all possible random fertilization events and their expected frequencies. this is feasible. Why does the reproductive system and urinary system shared organs in some animals? ? Order Your Homework Today! c. establish a pedigree. Write the genotype of each offspring. LOGIN TO VIEW ANSWER. Rett’s syndrome Which of the following X-linked disorders affected Queen Victoria’s descendants and became known as the “Royal disease”? Why do humans have emotions and feelings? d. Punnett squares only show the possible outcomes and their probability. Source(s): Biology sophomore year, passed with an a+. Suppose a sperm cell enters an ovum. Answer Save. Favorite Answer. b. all possible results of a genetic cross. The capital A stands for the trait of free-hanging earlobes, and the lowercase a stands for the trait of attached earlobes. Describes how to use a Punnett square to predict genotypes and phenotypes. The Punnett square is a diagram designed by Reginald Punnett and used by biologists to determine the probability of an offspring having a particular genotype. A completed Punnett square shows all of the following except - 14507671 1. cushioning and protecting the fetus. c. the alleles in the gametes of each parent. b. all possible results of a genetic cross. a. The Punnett square was invented by the English geneticist Reginald Punnett in the early 20th century. LOGIN TO POST ANSWER. X Research source A Punnett square is a simple method for determining the theoretical ratios of genotypes and phenotypes that would occur in the offspring of a cross between two parents. Practice Test Question #9: The image shows the result of a crossbreeding experiment as a Punnett square. Earn a little too. shows a Punnett square for a cross between a plant with yellow peas and one with green peas. three Favorite Answer. A Punnett square, devised by the British geneticist Reginald Punnett, is useful for determining probabilities because it is drawn to predict all possible outcomes of all possible random fertilization events and their expected frequencies. the genotypes of the offspring. none of the above, Which of the following is a function of the placenta? Genotype: The letters that make up the individual. In its simplest form, the Punnett square consists of a square divided into four quadrants. Lv 4. Hemophilia. b. The top of the Punnett square shows one parent’s alleles for the trait; the side of the Punnett square shows the other parent’s alleles for the same trait. Figure 7 shows a Punnett square for a cross between a plant with yellow peas and one with green peas. d. the genotypes of the offspring. Join now. ... We have moved all content for this concept to for better organization. existence began while the earth became nonetheless youthful and its temperature became lots bigger than what this is as we communicate; or maybe nevertheless worldwide warming is occurring i do no longer think of this is going to ever be feasible to extend the temperature to the tiers of the early days of Earth. actually diverse species differentiated from that common ancestor many some years in the past. The following genotypes are possible. The r allele is recessive and produces yellow flowers. A Punnett square shows all of the following EXCEPT? Probability is the likelihood that a particular event will occur. 1 Answer. Please update your bookmarks accordingly. All four boxes must be correct to receive this credit. The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. What do you think of the answers? b. The photo shows a person with a short big toe.

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