The cell membrane has two functions and one is a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
B) nodes
C) polyps
D) adenoids
E) peyer patches
Mus musculus (mouse)| size 2,500 million bases| gene # -30,000| gene density 1 gene per 100,000 bases| chromosome #40
Drosophila melanogaster (fruit fly)| size 180 million bases| gene # 13,600| gene density 1 gene per 9,000 bases| chromosome #8
Arabidopsis thaliana (plant)| size 125 million bases| gene #25,500| gene density 1 gene per 4,000 bases| chromosome #10
Caenorhabditis elegans (roundworm)| size 97 million bases| gene #19,100| gene density 1 gene per 5,000 bases| chromosome #12
Saccharomyces cerevisiae (yeast)| size 12 million bases| gene #6,300| gene density 1 gene per 2,000 bases| chromsome #32
Escherichia coli (bacteria)| size 4.7 million bases| gene #3,200| gene density 1 gene per 1,400 bases| chromosome #1
H. influenzae (bacteria)| size 1.8 million bases| gene #1,700| gene density 1 gene per 1,000 bases| chromsome #1
The table shows the relative size of the genomes, number of genes, and number of chromosomes for a variety of different organisms. Based on what we know regarding the genetic code of all living things, how does the genetic code of a eukaryote organism compare to that of a prokaryote organism?
A) Prokaryote organisms have much simpler DNA, containing fewer than four nitrogen bases.
B) Eukaryote organisms have a larger genome containing a more complex set of nitrogen bases.
C) Both types of organisms contain exactly the same four nitrogen bases, but in different sequences and numbers.
D) Both types of organisms contain exactly the same four nitrogen bases, in the exact sequences, but in varying numbers.
From the information provided here, it can be said that both the types of organisms contain exactly the same four nitrogen bases, but in different sequences and numbers. Thu, the correct option is C.
The genetic code is a set of rules which defines how the four-letter code of the DNA is translated into the 20-letter code of amino acids in an organism, which are the building blocks of proteins in that organism.
The genetic code is almost completely universal across all the different life forms, with a few minor differences in some of the bacteria such as Mycoplasma and in the bacterial-derived lineages such as mammalian mitochondria and chloroplast of plant cells. The variation is due to the codon usage.
The genetic code consists of the sequence of bases in the DNA or RNA molecules. Groups of three bases form codons, and each codon in this stands for one amino acid. The codons are read in the sequence following the start codon until a stop codon is reached in that sequence. The genetic code is universal, unambiguous, and redundant.
Therefore, the correct option is C.
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brightness
temperature
shape
Answer:
The poles
Explanation:
Because the air is thinner and more sun radiation.
TrueFalse
circulatory
endocrine
digestive
respiratory
Hemoglobin is a crucial component of the circulatory system. It is a protein found in red blood cells that plays a central role in oxygen transportation. Therefore, the correct option is option 2.
The circulatory system, also known as the cardiovascular system, consists of the heart, blood vessels, and blood. Its primary function is to deliver oxygen, nutrients, hormones, and other essential substances to the body's tissues and organs.
In the context of the circulatory system, hemoglobin binds to oxygen in the lungs and carries it to the body's tissues, where it is released for cellular respiration. Additionally, hemoglobin helps transport carbon dioxide, a waste product of cellular metabolism, from the tissues back to the lungs, where it can be exhaled.
Therefore, hemoglobin's function and presence in red blood cells are closely associated with the circulatory system. Its role in facilitating oxygen and carbon dioxide exchange ensures the proper functioning and survival of cells and organs throughout the body.
Thus, the ideal selection is option 2.
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