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Romashka-Z-Leto [24]
3 years ago
12

Which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer? double helix structure o

f DNA BRCA1 and BRCA2 genes nucleic acid monomers formation of tumor suppressor proteins
Biology
2 answers:
sweet [91]3 years ago
8 0

Answer:

B

Explanation:

took test

icang [17]3 years ago
4 0

Answer:

BRCA1 and BRCA2 genes

Explanation:

The BRCA1 and BRCA2 genes are tumor suppressor genes that encode breast cancer susceptibility proteins involved in repairing double-strand DNA breaks (DSBs) by the mechanism of homologous recombination. This mechanism uses the sister chromatid of the homologous chromosome as template for repairing DSBs. It has been shown that mutations in BRCA1 and BRCA2 genes alter the molecular mechanism of homologous recombination DNA repair, thereby mutations are not repaired appropriately and persist in the DNA of tumor cells.

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A cross of a white hen with a black rooster produces erminette-color offspring. Which contains both black and white colors. This
iren [92.7K]

Answer:

codominance

Explanation:

Codominance is a result of cross-breeding different color animals that have the exact same DNA.

8 0
3 years ago
A strike-slip fault is the result of what type of stress?
taurus [48]

Answer:

<h3>С.shear</h3>

Explanation:

A strike-slip fault is a dip-slip fault in which the dip of the fault plane is vertical. Strike-slip faults result from shear stresses .

4 0
3 years ago
Fungi rapidly colonize leaves that fall into freshwater streams. They break down the cellulose in the leaves and absorb the gluc
natali 33 [55]

Answer:

Fungi indirectly help the fishes by providing digested organic nutrients to their prey insects.

Explanation:

According to the given information, fishes are predators of insects. These insects feed on dead leaves. The insects are not able to digest the cellulose of dead leaves. Fungi breakdown the dead and decaying leaves and digest the complex molecules such as cellulose into simpler organic nutrients which in turn are consumed by insects.

If fungi do not decompose the dead leaves, insects would not be able to derive the organic nutrients from them. A shortage of food supply to insects would starve them. Unavailability of prey insects would starve fishes. Thereby, fungi indirectly benefit the fishes to obtain their nutrition from the insect.

8 0
3 years ago
The appearance of new technologies in Europe after the 11th century produced a variety of social consequences, both progressive
riadik2000 [5.3K]

Answer: D

Explanation:

Because the heavy plow and its traction team was expensive tool and individual peasant farmers were not able to own it, it brought collective ownership and patterns of communal agriculture and communal animal husbandry.

The heavy plough required more energy to pull this resulted several families coming together to pool their oxen to form a team large and strong enough to pull the heavy plow. The resulting “ox-gangs” became an important social group.

3 0
3 years ago
26.
ANTONII [103]

Answer:

C

Explanation:

ans is C Wait a minute, I'll be right back.

7 0
2 years ago
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