What is the percentage of population having gene A from hybridization between AaBbCCDd & AaBbCcdd ?

Plant with genotype AaBbCCDd and AaBbCcdd are crossed. Calculate the number of offsprings having Gene A in their genotype.

A plant having genotype AaBbCcDd is selfed producing 256 offsprings. Calculate Number of plants with genotypic constitution AABbCCDd

A plant having genotype AaBbCcDd is selfed producing 256 offsprings. Calculate Number of plants with genotypic constitution AABbCCDd.

Problem Set

(See attached file for full problem description) --- 1. In the following pedigree, assume no outsiders marrying in carry a disease allele. A. What is the mode of inheritance of this disease? Circle one. (1 point) Autosomal dominant; Autosomal recessive; X-linked dominant; Y-linked; mitochondrial inheritance; X-linked recessive B. Explain your choice in A. (Give two lines of reasoning.) [2 points] C. Write the genotypes of the following individuals. (If more than one genotype is possible, write down all the possibilities.) [5 points] #1_________ #2_________ #3_________ #4_________ # 5_________ D. What is the probability that the asterisked i... click for more

GENETICS BASIC MULTIPLE CHOICE

OUT OF THE FIFTY QUESTIONS WE HAD TO ANSWER---IM HAVING A LOT OF TROUBLE FINDING THE ANSWERS (AND EXPLANATIONS) TO THE FOLLOWING: Question 1 What is a mechanism of condensation shared by both prokaryotes and eukaryotes? A. nucleosomes B. loop domains C. 30 nm fiber D. none of the answers are correct Question 2 Which of the following would introduce more twists into the DNA molecule of a bacterial cell? A. negative supercoiling B. positive supercoiling C. chromatin remodeling D. all of the answers are correct Question 3 What term is used to describe highly repetitive DNA? A. heterochromatin B. homochromatin C. euchromatin D. pr... click for more

Forensic analysis is assessed.

In forensic analysis using STR systems, up to 16 different loci can be tested in a single PCR reaction. Why is it important for forensic analysis that each locus being tested is present on a different chromosome? Ideas are justified.