Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Explanation:
Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus. DNA is coiled around proteins called histones, which provide the structural support. Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division.
Answer:
first one is active transport sorry cant help with the rest
Explanation:
Hi , the jobs are
the arteries , carry the blood away from the heart
the capillaries , enable the actual exchange of water and chemicals between the blood and the tissues
veins, carry the blood from the capillaries back toward the heart
Answer:
A. If seed shape did not have a clearly recessive form
Explanation:
To study inheritance patterns, Mendel studied a few characteristics of pea plant -e.g. pea colour, shape, plant height. These characteristics had to be very clear dominant and recessive forms to distinguish between, otherwise detecting the patterns would not have been obvious.
For example, if crossing a wrinkled seed plant with a smooth seed plant made a semi-wrinkled plant, Mendel would not have been able to study the inheritance of dominant and recessive traits.
Answer: No, I do not think that nuclear power is safe to use. Any radioactivity in general is dangerous in itself. I would not feel comfortable living near a nuclear power plant, due to the radioactivity, the pollution, and the huge health risks of doing so, such as extremely elevated risk for cancer