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maksim [4K]
3 years ago
8

Which mutagens incorporate into dna and frequently pair with the wrong base?

Biology
1 answer:
aleksandr82 [10.1K]3 years ago
3 0

Chemicals can make mutations by a number of mechanisms. Base analogs are incorporated into DNA and mostly pair with the wrong base. Alkylating agents, deaminating chemicals, hydroxylamine, and oxidative radicals change the structure of DNA bases, thus altering their pairing properties. Introducing agents wedge between the bases and cause single-base insertions and deletions in replication.

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2- Explain how land that gets broken up can<br> contribute to loss of species diversity
Minchanka [31]

Explanation:

Broken up land land contributes to a loss of species diversity through geographoc isolation. Geographic isolation is the physical barrier dividing the communities. It usually stops the gene flow between species in a process called allopatric speciation, contributing to reproductive isolation.

Further Explanation:

Spontaneous modifications in the genome can occur during the cycle of cell division, called mutations. These errors occur as copies of the DNA are produced within the cell; mutations may range from small modifications called single nucleotide polymorphisms to large-scale deletions and multi-gene additions.

Such mutations create variations that within a group become dominant, resulting in the creation of different, genetically distinct organisms called species.

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly  

7 0
3 years ago
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Scrat [10]

The correct answers are:

B. Warmer air promotes more evaporation.

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E. Areas with a lot of surface water have higher humidity than drier areas.

The humidity can simply be described as the amount of water vapor in the air. The humidity can vary, and it can be very high in certain place for the whole year, very low at other places for the whole year, or to be changing seasonally.

The areas that have a lot of surface water (the Amazon River Basin) tend to have higher humidity than the places that lack surface water (Sahara Desert). Also, the humidity depends a lot on the temperature of the air. The warmer the air is, the higher the humidity, and vice versa, the colder the air is, the lower the humidity.

4 0
3 years ago
Read 2 more answers
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Fynjy0 [20]

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Explanation:

Lymphocytes are a class of white blood cells (leukocytes) involved in immune response when activated by the a foreign molecule (an antigen). B lymphocytes develop in the bone marrow of mammals and are responsible for the production of circulating antibodies.

Thus, lymphocytes are associated with the immune system.

5 0
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Anni [7]

Answer:

Biomimicry is important for animals for survival, as looking like a known dangerous animal can lower its chances for being attacked. An example is the monarch butterfly, and its mimicked viceroy butterfly, having nearly identical wings.

Explanation:

4 0
3 years ago
Which of the following statements about asteroids is true?
Dmitrij [34]
I think the answer B
4 0
3 years ago
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