BIO 325 Exam 2 Questions and 100% Correct Answers 2026/27 Update -
UT Austin
No questions will be answered during the exam.
Figuring out what the questions mean is part of the exam.
Detach the back page and use it as scratch paper.
Be sure to circle your answers.
If nothing is circled, you won’t get credit.
Reason: I will not pick the correct answer from among multiple answers.
NO CALCULATORS.
Leave numerical answers as expressions (e.g. 1/2 × 1/3 instead of 1/6 ).
Do not do the arithmetic.
It wastes your time, and you might make an error that will count against you.
You don’t have to write a long explanation, but you must show how you got your
answer. If all you have on your page is a number, there is no way for me to know if you
guessed, copied it, or what. Credit is given only for knowing how to figure out the
answer.
The entire exam contains 100 points.
Tips:
• Answer the question asked, not a different one that you prefer. (zero points for that)
• Do not supply information not asked for. That could count against you – especially if
it’s incorrect.
BIO 325 Exam 2
, 1. For one organism you are given the genes ABC on a
chromosome separated by map distances as shown. This organism
is crossed with another that is homozygous recessive (abc). 15 pts
2 8
A B C x a b c
a b c a b c
Out of 1000 total offspring, give the genotypes and the predicted
number of offspring for each resulting genotype.
450 ABC
450 abc
10 Abc
10 aBC
40 ABc
40 abC
1000
15
BIO 325 Exam 2
UT Austin
No questions will be answered during the exam.
Figuring out what the questions mean is part of the exam.
Detach the back page and use it as scratch paper.
Be sure to circle your answers.
If nothing is circled, you won’t get credit.
Reason: I will not pick the correct answer from among multiple answers.
NO CALCULATORS.
Leave numerical answers as expressions (e.g. 1/2 × 1/3 instead of 1/6 ).
Do not do the arithmetic.
It wastes your time, and you might make an error that will count against you.
You don’t have to write a long explanation, but you must show how you got your
answer. If all you have on your page is a number, there is no way for me to know if you
guessed, copied it, or what. Credit is given only for knowing how to figure out the
answer.
The entire exam contains 100 points.
Tips:
• Answer the question asked, not a different one that you prefer. (zero points for that)
• Do not supply information not asked for. That could count against you – especially if
it’s incorrect.
BIO 325 Exam 2
, 1. For one organism you are given the genes ABC on a
chromosome separated by map distances as shown. This organism
is crossed with another that is homozygous recessive (abc). 15 pts
2 8
A B C x a b c
a b c a b c
Out of 1000 total offspring, give the genotypes and the predicted
number of offspring for each resulting genotype.
450 ABC
450 abc
10 Abc
10 aBC
40 ABc
40 abC
1000
15
BIO 325 Exam 2
