________ is the term given to the process by which cells delete genes when the gene products are no longer required, as occurs in mammalian red blood cells.

Fill in the blank(s) with the appropriate word(s).


Gene deletion or gene diminution

Biology & Microbiology

You might also like to view...

In Figure 26.09 (above) the animals across are a lancelet, lamprey, salmon, lizard, and rabbit. If the salmon, lizard, and rabbit are an ingroup, which animals above would be an outgroup and which characteristics are necessary to be in the ingroup?



A. Lamprey and lancelet; notochord and vertebrae.
B. Lamprey only; vertebrae, hinged jaw, tetrapod, and mammary glands.
C. Lancelet and lamprey; hinged jaw, tetrapod, and mammary glands.
D. Lancelet, lamprey and salmon; hinged jaw, tetrapod, and mammary glands.
E. Lizard and rabbit; tetrapod and mammary glands.

Biology & Microbiology

In humans, ____ mutations cause forms of Ehlers–Danlos syndrome a disruption of collagen synthesis that may result

in loose skin or weak joints.

a. frameshift b. deleterious c. advantageous d. lethal e. neutral

Biology & Microbiology

The process that allows cells other than eggs and sperm to duplicate and divide is known as __________

Fill in the blank(s) wirh the appropriate word.

Biology & Microbiology

Sperm cells are produced in the 

A. vas deferens. B. penis. C. urinary bladder. D. testes.

Biology & Microbiology