Preimplantation genetic diagnosis is done:a
after in vitro fertilization on cells from the embryo.
b. in the womb, before birth.
c. after a woman is pregnant, but before the embryo implants.
d. with the help of ultrasound.
e. before fertilization on the sperm and the egg.
A
You might also like to view...
The development of septa in the hyphae of fungi was an important evolutionary step. Why?
A. If a hypha is damaged, fungi can seal septa pores to prevent cytoplasmic leakage. B. If a hypha is damaged, septa can secrete chemicals to attract symbiotic cyanobacteria. C. Septa can produce fungal spores during both sexual and asexual reproduction. D. Septa can produce different fungal mating types that aid in sexual reproduction.
In order to speed up the sterilization process, which of the following would be useful?
A. Drying the material B. Washing/mechanical removal of bacteria/organic matter C. Addition of organics D. Nothing E. Washing/mechanical removal of bacteria/organic matter AND addition of organics
Which of the following information led scientists to believe that archaeans belong to their own distinct
domain?
a. They have a cell wall synthesized from a unique carbohydrate. b. The genetic material of archaeans is RNA, not DNA. c. Many archaeans live in extreme environments tolerated by no other organisms. d. Archaeans do not utilize ATP to do cellular work. e. Archaeans have unique cellular structures not found in either eukaryotic or prokaryotic cells.
The process of obtaining food is known as _____ and requires specialized mouthparts
A) ingestion B) digestion C) absorption D) excretion