45 Written questions
Term 1 of 45
Bt maize ________.
A is resistant to various herbicides, making it practical to weed maize fields with those herbicides
B contains transgenes that increase vitamin A content
C includes bacterial genes that produce a toxin that reduces damage from insect pests
D is a "boron (B)-tolerant" transgenic variety of maize
Term 2 of 45
In which of the following pairs of structures are the two terms equivalent?
A ovule-egg
B embryo sac-female gametophyte
C seed-zygote
D microspore-pollen grain
Term 3 of 45
A summer occupation in maize-growing regions is detasseling the maize: removing unwanted
male
flowers so that female flowers on the same plant are pollinated by the desired pollen for the
hybrid maize.
Which of the following best describes maize plant flowers?
A)They have both stamens and carpels and the plant is dioecious.
B)They have both stamens and carpels and the plant is monoecious.
C)They have either stamens or carpels and the plant is dioecious.
D)They have either stamens or carpels and the plant is monoecious
, Term 4 of 45
Which of the following is a true statement about asexual reproduction in plants?
A Asexual clones of plants do not occur naturally.
B Cloning, although achieved in animals, has not been demonstrated in plants.
C Making cuttings of ornamental plants is a form of fragmentation.
D Asexual reproduction is more common than sexual reproduction in flowering plants
Term 5 of 45
Which of the following flower parts develops into the pulp of a fleshy fruit?
A stigma
B style
C ovule
D ovary
Term 6 of 45
Which of the following is the correct order of floral organs from the outside to the inside of a
complete flower?
A) petals → sepals → stamens → carpels
B)sepals → stamens → petals → carpels
C)spores → gametes → zygote → embryo
D)sepals → petals → stamens → carpels
Term 7 of 45
If pollen from a plant with the S1S2 genotype is recognized and allowed to germinate on the
stigma of the
same plant with the S1S2 genotype, the plant is mostly likely ________.
A self-compatible and can self-pollinate
B self-compatible and must cross-pollinate
C self-incompatible and can self-pollinate
D self-incompatible and must cross-pollinate