For a species of beetle, n = 20, a diploid cell would contain 40 chromosomes overall.
<h3>How do chromosomes work?</h3>
A chromosome is a long DNA molecule that houses all or some of the genetic code of an organism. In order to preserve the quality of the chromosome, chaperone proteins and histones, a type of packaging protein present in the majority of eukaryotic chromosomes, attach to and condense the DNA molecule.
<h3>What place do chromosomes come from?</h3>
The DNA that makes up each chromosome has been continuously tightly coiled around proteins called histones to support its structure.
<h3>Which of the four chromosomal kinds:</h3>
- Sub metacentric chromosomes.
- Chromatin that is acrocentric.
- The telocentric chromosomes.
- Chromatin that is metacentric.
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Answer:
c
Explanation:
because it has made its way to the bottom meaning its been their longer
its not a b/c it on top and hasn't had enough time to break down
its not b b/c well theres nothing their
Answer:
Medulla oblongata. (Ans. A)
Explanation:
Medulla oblongata is present in the brain, in front of the cerebellum. It controls the number of functions in the body. It helps to transfer messages to the thalamus & spinal cord, from the body.
Medulla oblongata helps to regulate breathing, blood pressure, heart rate, sneezing, and digestive activities. Medulla oblongata part of the brain is a center for respiration & circulation. Sensory & nerve cells from the midbrain & forebrain travel through the medulla. It receives its blood supply from many arteries (including anterior spinal, posterior inferior cerebellar and the vertebral artery's)
Igneous rock, because it is the cooling of hot magma.
