Answer:
Mitochodaria is present in majority of cells and plastid is present only in in few.
Explanation:
Endosymbiosis theory explain that mitochondria and plastids arose from bacteria through engulfing by larger cells because mitochondria and plastids contain different DNA than cell nuclei.
Mitochondria were acquired before than plastids because mitochondria is present in majority of eukaryotic cell and some cell have plastids with mitochondria.This explain that after the endosymbiosis of mitochondria some cells did endosymbiosis with photosynthetic bacteria to acquire plastid.
Answer:
four daughter cells are produced during meiosis
Explanation:
four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.
Answer:
11) A. The optimum pH of an enzyme is 6.6
12) C. A control group
Answer:
A(n) endotherm is able to maintain an internal body temperature. Experiment is an activity many famous historical biologists DID NOT participate in. False; Experiment is an activity many famous historical biologists DID participate in.
After the genetically modified plasmids are inserted into bacteria; the bacteria make proteins from the inserted modified genes.
Explanations;
Plasmids are small, circular strands of DNA that are present in bacterial cells and are capable of self-replication. To add pieces of foreign DNA to bacteria, scientists first package the DNA of interest within the plasmid, and then induce the bacteria to take up the vector. This in turn makes the host bacterium a new, genetically modified organism. Once inside the bacteria, foreign proteins can be made within the bacteria, that is; if the introduced DNA is a gene that encodes a protein, then gene's protein product can be studied by expressing it in the bacteria.
