Biology, 13.02.2020 19:40 domiyisthom
DNA replication occurs rapidly. For example, approximately 50 nitrogenous bases are added to a DNA strand each second in humans. In bacteria, this occurs even faster with 1000 bases being added each second.
At such speeds, errors can occur, and some bases are copied incorrectly. Even so, a human cell is able to replicate its DNA with only one mutation for every 50 million bases copied. Bacteria experience mutations much more frequently because the speed of their DNA replication is 20 times faster than that of a human.
To reproduce, bacteria clone themselves through an asexual process called binary fission. Why, then, are bacterial colonies still able to adapt to new environments?
A.
Sexual reproduction always results in offspring that are genetically different from their parents.
B.
Asexual reproduction allows offspring to adapt without being genetically different from their parents.
C.
New genetic combinations resulting from mitosis allow offspring to be genetically different from their parents.
D.
Viable errors during DNA replication allow offspring to be genetically different from their parents.
Answers: 1
Biology, 21.06.2019 19:40
The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?
Answers: 1
Biology, 22.06.2019 02:30
Drag each tile to the correct box. arrange the phases of mitosis in the correct order. 1 (condensation of chromosomes) 2 (separation of chromosomes) 3 (formation of spindle fibers) 4 (alignment of chromosomes in the center of the cell) 5 (pinching of the cell membrane)
Answers: 2
Biology, 22.06.2019 03:00
Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point
Answers: 1
Biology, 22.06.2019 09:00
Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land
Answers: 3
DNA replication occurs rapidly. For example, approximately 50 nitrogenous bases are added to a DNA s...
Mathematics, 11.09.2020 14:01
English, 11.09.2020 15:01
English, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
Biology, 11.09.2020 15:01
English, 11.09.2020 15:01
History, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
English, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
Geography, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
History, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
History, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
Mathematics, 11.09.2020 15:01
Physics, 11.09.2020 15:01