LSUE Biology 1001 Final Exam
LSUE BIOLOGY 1001 FINAL EXAM NEWEST ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
All the offspring of a cross between a black eyed mendelian and an orange eyed
mendelian have black eyes. What is the expected phenotypic ration of a cross
between two orange eye mendelians?
A) 3 black eye: 1 orange eye
B) 0 black eyed: 1 orange eyed
C) 1 black eyed: 3 orange eyed
D) 1 black eyed: 0 orange eyed
B) 0 black eyed: 1 orange eyed
How is sex determined in most ants and bees?
A) by the XY system
B) by the ZW system
C) by the number of chromosomes
D) by the size of the sex chromosomes
C) by the number of chromosomes
Which of the following terms refers to a situation where a single phenotypic
character is determined by the additive effects of two or more genes?
A) incomplete dominance
B) codominance
C) pleiotropy
D) polygenic inheritance
D) polygenic inheritance
1|Page
, LSUE Biology 1001 Final Exam
Amniocentesis and chorionic villus sampling allows for ____ and ____ of the fetus
so that it can be tested for abnormalities
A) imaging ...karyotyping
B) sexing.... imaging
C) karyotyping... biochemical testing
D) direct observation.. biochemical testing
D) direct observation.. biochemical testing
A woman has been trying to conceive for several years, unsuccessfully. At a
fertility clinic, they discover that she has blocked Fallopian tubes. Using modern
technologies, some of her eggs are removed, fertilized with her husband's sperm,
and implanted into her uterus. The procedure is successful, but the couple
discovers that their son is color blind and the blood type O. The woman claims
that the child can't be theirs since she has blood type A and her husband has
blood type B. Also, neither parent is color blind, although one grand parent (the
woman's father) is also color blind. As a genetic counselor, you would explain to
the parent that
A) the eggs must have been accidentally switched, since the baby's blood type has
to match one of his parents
B) each parent could have contributed one recessive allele, resulting in type O
blood
C) the eggs must have been accidentally switched, since a type A parent and a
type B parent can have any type children except O
D) it is possible for the baby to have type O blood, since type O is inherited
through a dominant allele
B) each parent could have contributed one recessive allele, resulting in type O
blood
According to scientist, about what percentage of men currently living in Central
Asia may be descended from the Mongolian ruler Genghis Khan?
2|Page
, LSUE Biology 1001 Final Exam
A) 4%
B) 8%
C) 25%
D) 40%
B) 8%
Which of the following is essentially the opposite of pleiotropy?
A) incomplete dominance
B) codominance
C) multiple alleles
D) polygenic inheritance
D) polygenic inheritance
The chromosome theory of inheritance states that
A) chromosomes that exhibit mutations are the source of genetic variation
B) the behavior of chromosomes during meiosis and fertilization accounts for
patterns of inheritance
C) the behavior of chromosomes during mitosis accounts for inheritance patterns
D) humans have 46 chromosomes
B) the behavior of chromosomes during meiosis and fertilization accounts for
patters of inheritance
The alleles of a gene are found at ______ chromosomes
A) the same locus on non homologous
B) different loci on homologous
C) different loci on non homologous
D) the same locus on homologous
D) the same locus on homologous
3|Page
LSUE BIOLOGY 1001 FINAL EXAM NEWEST ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
All the offspring of a cross between a black eyed mendelian and an orange eyed
mendelian have black eyes. What is the expected phenotypic ration of a cross
between two orange eye mendelians?
A) 3 black eye: 1 orange eye
B) 0 black eyed: 1 orange eyed
C) 1 black eyed: 3 orange eyed
D) 1 black eyed: 0 orange eyed
B) 0 black eyed: 1 orange eyed
How is sex determined in most ants and bees?
A) by the XY system
B) by the ZW system
C) by the number of chromosomes
D) by the size of the sex chromosomes
C) by the number of chromosomes
Which of the following terms refers to a situation where a single phenotypic
character is determined by the additive effects of two or more genes?
A) incomplete dominance
B) codominance
C) pleiotropy
D) polygenic inheritance
D) polygenic inheritance
1|Page
, LSUE Biology 1001 Final Exam
Amniocentesis and chorionic villus sampling allows for ____ and ____ of the fetus
so that it can be tested for abnormalities
A) imaging ...karyotyping
B) sexing.... imaging
C) karyotyping... biochemical testing
D) direct observation.. biochemical testing
D) direct observation.. biochemical testing
A woman has been trying to conceive for several years, unsuccessfully. At a
fertility clinic, they discover that she has blocked Fallopian tubes. Using modern
technologies, some of her eggs are removed, fertilized with her husband's sperm,
and implanted into her uterus. The procedure is successful, but the couple
discovers that their son is color blind and the blood type O. The woman claims
that the child can't be theirs since she has blood type A and her husband has
blood type B. Also, neither parent is color blind, although one grand parent (the
woman's father) is also color blind. As a genetic counselor, you would explain to
the parent that
A) the eggs must have been accidentally switched, since the baby's blood type has
to match one of his parents
B) each parent could have contributed one recessive allele, resulting in type O
blood
C) the eggs must have been accidentally switched, since a type A parent and a
type B parent can have any type children except O
D) it is possible for the baby to have type O blood, since type O is inherited
through a dominant allele
B) each parent could have contributed one recessive allele, resulting in type O
blood
According to scientist, about what percentage of men currently living in Central
Asia may be descended from the Mongolian ruler Genghis Khan?
2|Page
, LSUE Biology 1001 Final Exam
A) 4%
B) 8%
C) 25%
D) 40%
B) 8%
Which of the following is essentially the opposite of pleiotropy?
A) incomplete dominance
B) codominance
C) multiple alleles
D) polygenic inheritance
D) polygenic inheritance
The chromosome theory of inheritance states that
A) chromosomes that exhibit mutations are the source of genetic variation
B) the behavior of chromosomes during meiosis and fertilization accounts for
patterns of inheritance
C) the behavior of chromosomes during mitosis accounts for inheritance patterns
D) humans have 46 chromosomes
B) the behavior of chromosomes during meiosis and fertilization accounts for
patters of inheritance
The alleles of a gene are found at ______ chromosomes
A) the same locus on non homologous
B) different loci on homologous
C) different loci on non homologous
D) the same locus on homologous
D) the same locus on homologous
3|Page
