Answer:
C. two tetramers of histone proteins
Explanation:
The nucleosome core particle is responsible for packaging DNA in the chromosomes. The protein components that make up the nucleosome core are two tetramers of histone proteins. One of which is composed of two units each of histones H2A and H2B, while the other one is composed of two units each of histones H3 and H4. Thus making up the entire protein component of the nucleosome core.
D) <em><u>a beneficial mutation that increased survival of certain plants that reproduced and passed the mutated gene to offspring.
Hope this helped! xD</u></em>
Superfund is a program from EPA
(Environmental Protection Agency) that helps in cleaning some of the US’s most
contaminated land and responding to environmental emergencies, oil spills and
natural disasters. One of its targets this coming June 8 is the Portland Harbor.
An established conditioned stimulus is paired with a new neutral stimulus in: higher-order conditioning.
Classical conditioning refer to a learning process that involves the repeated pairing of two (2) stimuli:
Basically, classical conditioning is a learning procedure which helps psychologists in understanding when a neutral stimulus is paired with a conditioned response or a neutral stimulus and an unconditional stimulus.
Similarly, a higher-order conditioning involves pairing an established conditioned stimulus with a new neutral (the second-order) stimulus, in order to make the new stimulus elicit (bring forth) the conditioned response, without presenting the initial conditioned stimulus.
Read more: brainly.com/question/24078563
Answer: D) ALL THE ABOVE
HAVE A BLESSED DAY!!!!! :)
