Answer:
C. DNA ligase adds nucleotides to the lagging strand
Explanation:
DNA replication is the process during cell division in which DNA copies itself. DNA strands unwind with the help of helicase to initiate the process. DNA Polymerase III is responsible for prokaryotic replication and adds nucleotides in 5' to 3' direction. Since both the strands of DNA run in opposite direction their replication is slightly different. The lagging strand is also formed by DNA Polymerase III in discontinuous manner leading to formation of Okazaki fragments. DNA ligase joins these fragments once the replication process is completed.
I) Locus- the chromosomal site where a specific gene is located. A locus is a fixed position on a chromosome, like the position of a gene or a marker. Each chromosome carries ,many genes; human's estimated haploid (n) protein coding genes are about 20,000, on the 23 different chromosomes.
ii) Interference; the observed double crossover frequency differs from the expected double crossover frequency. Cross over interference is used to refer to the non-random placement of crossovers with respect to each other during meiosis. It results in widely spaced crossovers along chromosomes. Interference may exert its effect across whole chromosomes. As chromosomes in many eukaryotes are large, interference must be able to act over megabase lengths of DNA.
iii) Linkage- the tendency for genes located in close proximity on the same chromosome to be inherited together. Normally when two genes are close together on the same chromosome, they do not assort independently and are said to be linked. Whereas genes located on different chromosomes assort independently and have a recombination frequency of 50%, linked genes have a recombination frequency that is less than 50%.
iv) Recombination- the process by which a new pattern of alleles on a chromosome is generated. Genetic recombination is the production of offspring with combinations f traits that differ from those found in either parent. During meiosis in eukaryotes, genetic recombination involves the pairing of homologous chromosomes. This may be followed by information transfer between the chromosomes.
The role of a Detrivore is to help recycle the nutrients in the soil. They break down complex proteins, and other materials so the answer is A. to decompose dead animals.
DNA replication has such accuracy varies. There are many DNA polymerases/repair enzymes that synthesize/repair DNA. Some are more frequent than others. The error frequency ranges between 1 to per 10,000 base pairs to 1 to per 10,000,000 base pairs, depends on the enzyme
Answer:
The correct option is d). The process is called interstitial growth.
Explanation:
The cartilage is composed of chondrocytes, which are located in small spaces called lacunae. Its function is to synthesize the extracellular matrix of cartilage. Its growth occurs through two processes: appositional growth and interstitial growth. When chondrocytes in lacunae divide and form new matrix, it leads to an expansion of the cartilage tissue from within, the process is known as interstitial growth, this happens because the young chondrocytes divide mitotically, forming a group called isogenous, while forming the matrix, each one separates, creating its own lacunae. As a result of the increase of chondrocytes and the secretion of the new intercellular matrix, it causes the cartilage to grow (expand) from within.
