Question

Questions 1-3

1.

A transgenic organism __________.

		has a gene from another species inserted in its DNA
		has been changed from one species into another
		is found only in crop plants
		has been cloned from an adult cell

2.

An individual with classic symptoms of Down syndrome is found to have 46 chromosomes. How can this be?

		It is possible if she or he carries a chromosome translocation, such as 14/21.
		This is possible if the individual has an extra chromosome 21 but has only one copy of chromosome 1.
		This is not possible.
		It is possible if she or he carries a chromosome inversion.

3.

Match the function of DNA on the left with the appropriate description on the right.

i.    expression         a.  stable maintenance and passage of information

ii.   variation             b. duplication of genetic material

iii.   replication         c. potential for alteration

iv. storage       d.  production of a phenotype

Which of the choices below is correct?

		i = c;  ii = a;  iii = b;  iv = d
		i = d;  ii = c;  iii = b;  iv = a
		i = d;  ii = b;  iii = c;  iv = a
		i = d;  ii = b;  iii = a;  iv = c
		i = b;  ii = d;  iii = a;  iv = c

Answer 1