Ependyma cells. These cells
that make up the neuroectodermal padding is responsible for the production of cerebral
spinal fluid. The cells are one type of neuroglia
cells of the central nervous system. The lining of ependyma cells of the brain also
plays a role in neuroregeneration.
Answer:
Vainas sinoviales tendinosas
Explanation:
Las vaina tendinosas o vainas sinoviales son mangas de tejido de protección que se encuentran alrededor de las articulaciones o rodean a los tendones. Estas vainas permiten que los tendones se deslicen suavemente, produciendo un líquido (líquido sinovial) que mantiene al tendón lubricado. De este modo, las vainas tienen como función evitar el roce entre el tendón y el hueso. Las vaina tendinosas conforman un revestimiento de dos capas: una interna unida al tendón y una externa de tejido conectivo.
A monomer is a molecule, which means that it is a group of two or more atoms, which are bound in a chemical bounds. So the correct answer is <span>a unit made of several atoms. </span>
Answer:
The codons that code for LEUCINE amino acid are:
1. UUA
2. UUG
3. CUU
4. CUC
5. CUA
6. CUG
Explanation:
A CODON is a group of three nucleotides in the mRNA molecule that specifies a particular amino acid. It represents a trio combination of nucleotides (A, G, C, U). There are about 64 possible codons formed from four nucleotides used in a combination of three's i.e 4³ = 64. All the codons collectively form the GENETIC CODE, which is used by all known living organisms.
However, since there are only 20 amino acids in nature and 64 possible codons, more than one codon encodes an amino acid. This means that the genetic code is DEGENERATE or REDUNDANT. Hence, in this case involving the amino acid: LEUCINE, the six (6) codons that specify it (depicted in the attached genetic code) are as follows:
- UUA
- UUG
- CUU
- CUC
- CUA
- CUG
Both chloroplasts and mitochondria are alike in that they both have respective number of membranes.