4 genetics questions

1. Draw all possible chromosome configurations in Metaphase I with a dihybrid AaBb. 2. Do the same things as in question 1 for the genotype AaBbCc. 3. How many types of gametes would result from a dihybrid AaBb? What are they? 4. What portion of the zygotes will be a. AaBBCc? b. AABBCc? c. AaBbCc?

Using Probability to solve a genetic problems

Hi, I don't have a problem with the question itself but i don't understand how my textbook use probabilty in solving the problem. How many genetically different eggs could be formed by a women with the following genotypes? Aa bb CC DD Now it's obvious that one gamete will have (A b C D) and the other gamete will have (a b C D) This is the way my textbook answered it "using the product rule(because the inheritance of each gene is independent), she can make 2x1x1x1= 2 different types of gametes. Please explain

probability (product rule vs sum rule)

I have a problem. I don't seem to understand when to use the product rule or the sum rule. Now, my textbook states that i should use the product rule for two or more independent events occuring together. And the sum rule for mutually exclussive events occuring. After reading this definition several times, i still don't understand what they are trying to say. here are the questions. If you roll a die (singular of dice), what is the probability you will roll: 1) a 6? 2) an even number 3)a number divisble by 3 4)if you roll a pair of dice, what is the probability that you will roll two 6s 5)an even number on one and an odd number on the other 6)matching numbers 7)two number... click for more

What are the stages of meiosis?

What happens during meiosis? What are the different stages?

What are the stages of mitosis?

What is mitosis? What are the stages of mitosis? What happens in each stage?