BSC 324: Genetics - Exam 2 Prep Study Set
4 - ANSWER How many covalent bonds does a single carbon atom form (maximal
number)?
5 - ANSWER How many atoms of carbon are there in one molecule of deoxyribose?
phosphorous, hydrogen, oxygen, nitrogen, and carbon (HONC-P) - ANSWER Which
chemical elements does DNA contain?
phosphate - ANSWER Which chemical group makes DNA an acid?
- carboxyl
- amino group
- sugar
- phosphate
- nitrogenous base
nitrogen - ANSWER Which chemical element is NOT found in deoxyribose?
- carbon
- hydrogen
- nitrogen
- oxygen
C-N-H---O=C - ANSWER Which of the following bonds can connect two bases in
matching (complementary) DNA strands?
adenine - ANSWER Which of the following is a DNA base?
- deoxyribose
- protein
- adenine
- ATP
- amino acid
amino acids - ANSWER Which of the following is NOT a part of DNA?
- carbon
, - phosphorus
- amino acids
- nitrogenous base
- sugar
34 - ANSWER Two closely related species of plants with 2n,1=14 and 2n,2=20 produce a
fertile, tetraploid hybrid plant. What is the number of chromosomes in the somatic cells
of this hybrid?
- 34
- 17
- either 14 or 20
- 68
- none
father, in meiosis II - ANSWER Two parents have a trisomic XYY son. In which parent and
when did meiotic non-disjunction happen?
- mother, in meiosis I
- mother, in meiosis II
- father, in meiosis I
- father, in meiosis II
1 - ANSWER How many Barr bodies are there in a somatic cell of an XXY Klinefelter boy?
- none
-1
-2
- 23
- 24
24 - ANSWER What is the number of chromosomes in an abnormal gamete that led to
fertilization resulting in a Klinefelter boy?
- 45
- 47
- 22
4 - ANSWER How many covalent bonds does a single carbon atom form (maximal
number)?
5 - ANSWER How many atoms of carbon are there in one molecule of deoxyribose?
phosphorous, hydrogen, oxygen, nitrogen, and carbon (HONC-P) - ANSWER Which
chemical elements does DNA contain?
phosphate - ANSWER Which chemical group makes DNA an acid?
- carboxyl
- amino group
- sugar
- phosphate
- nitrogenous base
nitrogen - ANSWER Which chemical element is NOT found in deoxyribose?
- carbon
- hydrogen
- nitrogen
- oxygen
C-N-H---O=C - ANSWER Which of the following bonds can connect two bases in
matching (complementary) DNA strands?
adenine - ANSWER Which of the following is a DNA base?
- deoxyribose
- protein
- adenine
- ATP
- amino acid
amino acids - ANSWER Which of the following is NOT a part of DNA?
- carbon
, - phosphorus
- amino acids
- nitrogenous base
- sugar
34 - ANSWER Two closely related species of plants with 2n,1=14 and 2n,2=20 produce a
fertile, tetraploid hybrid plant. What is the number of chromosomes in the somatic cells
of this hybrid?
- 34
- 17
- either 14 or 20
- 68
- none
father, in meiosis II - ANSWER Two parents have a trisomic XYY son. In which parent and
when did meiotic non-disjunction happen?
- mother, in meiosis I
- mother, in meiosis II
- father, in meiosis I
- father, in meiosis II
1 - ANSWER How many Barr bodies are there in a somatic cell of an XXY Klinefelter boy?
- none
-1
-2
- 23
- 24
24 - ANSWER What is the number of chromosomes in an abnormal gamete that led to
fertilization resulting in a Klinefelter boy?
- 45
- 47
- 22
