These questions will be similar to the ones on test 4. (Chapters 9, 10 & 11).
1). What chemical do plants absorb through the roots to allow them to make
proteins ?
a) nitrate b) phosphate c) zinc d) uranium
2). A "photosystem" consists of chlorophyll,______________________________
______________________________________________________________________
3). Which color of light has the longest wavelength ?
a) blue b) yellow c) green d) red
4). What two chemicals are produced by non-cyclic electron flow ?
a) ATP + NADPH b) NADPH + NADH c) ATP + NADH d) ATP + FADH2
5). What is the function of an electron acceptor molecule ? _____________
_____________________________________________________________________
6). Give an example of a CAM plant: __________________________________
7). Which two cancers below have a low genetic risk ?
a) lung and uterus b) prostate and colon
c) lung and colon d) prostate and uterus
8). Roughly how many genetic combinations in humans are caused by
independent assortment of chromosomes alone ?
a) 17 billion b) 4 million c) 70 trillion d) 8 million
9). What molecule in the nucleus controls the copying of DNA ?
a) carcinogen b) protein kinase c) polymerase d) cyclin
10). During which stage in meiosis is the chromosome number halved ?
a) Prophase I b) Anaphase I c) Prophase II d) Anaphase II
11). Normal cells will only divide by mitosis if : ________________________
__________________ and _______________________________________________
12). What stage in mitosis has two groups of chromosomes moving apart
towards opposite ends of the cell ?
____________________________
13). What type of cancer has an annual death rate of 57,000 and is the
second biggest killer in terms of cancer in the US ?
________________________
14). What type of gene prevents mitosis,or makes cancer cells commit suicide?
_________________________________________________________
15). Roughly when did Gregor Mendel conduct most of his work ?
a) 1830 b) 1930 c) 1860 d) 1890
16). If two heterozygous individuals are crossed in a situation of incomplete
dominance, the expected ratio of phenotypes in the offspring is:
a) 3 : 1 b) 1 : 2 : 1 c) 2 : 2 d) 9 : 3 : 3 : 1
17). A test cross always crosses the unknown with a :
a) homozygous recessive b) heterozygous
c) homozygous dominant d) unknown
18). What is meant by "heterotroph"? ____________________________________
19). C4 plants can store carbon dioxide as molecules of: __________________
20). Give an example of polygenic inheritance: _________________________
21). If a human cell with 46 chromosomes undergoes mitosis, this will
produce two cells, each with:
a) 92 chromosomes b) 23 chromosomes
c) 44 chromosomes d) 46 chromosomes
22). What is a "proto-onco gene"? ___________________________________________
23). If a gene has a different effect depending on whether it came from
your mother or your father, this is called:
a) DNA b) incomplete dominance c) imprinting d) karyotype
24). What are "Barr bodies"? ________________________________________________
25). How much of a chromosome is genes?
a) 10% b) 30% c) 50% d) 80% e) 100%