Two species of flowering plants live together and flower at the same time. They do not hybridize

because they each have a unique pollinating insect. This is an example of a



a. genetic bottleneck.
b. sympatric speciation.
c. hybrid zone.
d. postzygotic barrier.
e. prezygotic barrier.


E

Biology & Microbiology

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A mutation in a promoter region that causes the promoter sequence to more closely resemble the consensus sequence is called an up promoter mutation and results in a decrease in transcription

Indicate whether the statement is true or false

Biology & Microbiology

A plant cell contains _____ genomes and an animal cell contains ______ genomes.

A. 3,2 B. 3,3 C. 2,3 D. 2,2 E. 1,1

Biology & Microbiology

Photosynthesis takes place in

a. flowers only. b. leaves only. c. roots only. d. any green part of the plant

Biology & Microbiology

Process during which a single sperm penetrates the secondary oocyte, which will eventually result in the fusion of the egg and sperm nuclei and the development of a zygote. _____

A) Human chorionic gonadotropin

B) Zygote

C) Chorion

D) Morula

E) Folic acid

F) Fertilization

G) Blastocyst

H) Parturition

I) Cleavage

J) Ovulation

K) Placenta

L) Implantation

Biology & Microbiology