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Thepotemich [5.8K]
3 years ago
11

Which protein is responsible for unraveling the DNA double-helix into 2 strands to prepare it for copying?

Biology
1 answer:
mr Goodwill [35]3 years ago
6 0

The answer is; DNA helicase

They unzip the double helix into single strands during replication. The unzipping occurs at regions called origins where replication is initiated. The protein breaks the hydrogen bonds (using energy from ATP) between the complimentary bases of the strands hence forming a replication fork.


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Mendel also wondered if the inheritance of one trait affected the inheritance
svet-max [94.6K]

Answer:

A. dihybrid crosses

Explanation:

A dihybrid cross can be defined as a mating experiment between two lines/varieties/organisms that differ in two phenotypic traits. By using pea plants, Mendel performed dihybrid crosses in order to analyze the mode of inheritance of both phenotypic traits at the same time. From these mating experiments, Mendel observed that the inheritance factors (nowadays called genes) sorted independently from one another in the next generation, which is called the principle/law of Independent Assortment.

8 0
3 years ago
All of the following are adaptations that organisms in rocky intertidal zones use to avoid predators EXCEPT _____________
Andrej [43]

Answer:

Release of large numbers of eggs/sperm into the water during reproduction cycles.

Explanation:

Adaptation may be defined as the change in the physical, physiological and chemical changes in the organisms that helps them to survive in their environment.

The organisms living in the rocky intertidal zone shows adaptations as they are more darker in color and has simple body organisation. The algae,crabs and snails live in the intertidal zone. They have small number of offspring that protect them from the predators.

Thus, the answer is release of large numbers of eggs/sperm into the water during reproduction cycles.

3 0
3 years ago
Select the living organisms that will decrease as a result of the loss of coral in the food web (Other answers besides the ones
kirill [66]

Answer:

Parrotfish

Triggerfish

Butterfly fish

Explanation:

these three are the ones that eat the coral directly

this is why they are going to be the ones who are the most affected said the coral dies out

Hope this helps!

3 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!
ivann1987 [24]

A prominence refers to a bright, large, gaseous feature projecting externally from the surface of the Sun, usually in a loop shape. Prominences are attached with the surface of the Sun in the photosphere and elongate outwards into the corona of the Sun.

The prominences are related to the discharge of the high energy constituents called a solar flare. These solar flares have been considered to influence electronic communication as their energy blends up the upper atmosphere of the Earth, making the radio transmissions weak and noisy.

Hence, the correct statements are prominences can disturb radio communications on Earth and prominences are loop-shaped.


3 0
3 years ago
Read 2 more answers
What substances transported by plants 1) xylem vessels and trachieds? 2) sieve tubes of phloem?
Licemer1 [7]

Answer:

Explanation:

xylem vessels transport water and nutrient from roots to the other parts of the plant

trachieds are elongated in the xylem of vascular plant that play role in the transport of water and mineral salt

seive tube are the elongated living cells of the phloem in the flowering plant  they are the conduits of food (mostly sugar) transport

5 0
3 years ago
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