Fetus can survive an extra copy of a chromosome, but being hemizygous is <span>usually fatal</span>
A. can cats learn to sit down on command
The
correct answer is in the form of chylomicrons.
<span>
Digested
fats are resynthesized into triglycerides inside the epithelial cells, and
there they're coated by proteins. Such structures are called chylomicrons (small
globules composed of protein and lipid). The chylomicron is water-soluble and
that allows it to travel outside of the cell and enter the lymphatic
capillaries-lacteals.</span>
Hi there!
We can go through the overall function of all three of these:
mRNA: transcribed from the DNA, has the protein's composition written in it, and brings that to a ribosome where the protein will be made
tRNA: looks at the codons (set of 3 nucleotides) on the mRNA and brings amino acids which match up to that codon
rRNA: significant part of the composition of ribosomes
Now, looking at these, and back to the answer choices, we can already see that a, b, and c are correct. d, on the other hand, is incorrect.
Hope this helps! Feel free to let me know if you have any questions about this specific problem.
Explanation:
Complete answer:
A mature erythrocyte lacks nucleus and mitochondria so as to make a place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion. Young mammalian RBCs are nucleated.
