ANSWERS |FALL 2026/2027 UPDATE | 100%
CORRECT LATEST GRADED A+
(IVY TECH COLLEGE)
Which of the following adult structures is not derived from the same primary gem
layer as the others
a. muscles
b. bones
c. nerves
d. blood vessels
Conjoined twins result from incomplete twinning, which occurs during the first
month of gestation.
T or F
Which of the following is not a characteristic of childhood?
,a. Establishing bowel control
b. Developing a high degree of voluntary muscular control
c. Secondary teeth replacing primary teeth
d. Becoming reproductively functional
A procedure used to obtain enough fetal tissue sampled through the cervix to test
for genetic disorders without culturing cells is
a. amniocentesis
b. fetal cell sorting
c. ultrasonography
d. chorionic villus sampling
Absence of the SRY gene and expression of the Wnt4 gene are necessary for
female reproductive structures to develop in an embryo and fetus
T or F
Which of the following prenatal tests is non-invasive?
a. ultrasound
,b. chorionic villi sampling
c. inserting a shunt into a fetus with water on the brain
d. amniocentesis
A human with 46 chromosomes is
a. aneuploid
b. haploid
c. euploid
d. polyploid
Freckles are a phenotype and the allele combination that causes a clotting disorder
is a genotype
T or F
A multi factorial trait is determined by
a. only environmental factors
, b. neither genetic not environmental factors
c. one or more genes and the environmental
d. only by genetic factors
A trait determined by more than one gene is polygenic
T or F
Down syndrome is caused by
a. an extra Y chromosome
b. nondisjunction or a translocation
c. a missing autosome
d. the karyotype XXY
We can predict the likelihood of a particular inherited trait occurring in a particular
family member by consulting the ways that genes are transmitted
T or F