Carbon fixation carried out by the prokaryotes known as the __________ involves chlorophyll a.
Fill in the blank(s) with the appropriate word(s).
cyanobacteria
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Answer the following statements true (T) or false (F)
1. The law of independent assortment states that the two alleles of the same gene will segregate from each other during gamete formation. 2. Offspring receive both the alleles for a given trait from one parent. 3. A locus encodes different genes in different individuals of the same species. 4. The sex of all animals is determined by chromosomes. 5. If you were to examine a typical population at a single locus, you would find more copies of the wild-type allele than any other allele.
Which of the following statements concerning the properties of ligands for intracellular receptor systems is correct?
A) Steroids are produced from cholesterol. B) Changes in the composition of your diet can affect the concentration of some of these ligands in your body. C) Some ligands are bound to specific proteins when carried in the blood. D) both choices A and C E) choices A, B, and C
Methane gas (CH4) is an example of a
molecule containing which type of chemical bonds?
a. hydrogen bonds b. double bonds c. ionic bonds d. polar covalent bonds e. nonpolar covalent bonds
The advantage of homologous recombination is that ________.
A. following a splice with Cas9, the ends are joined back together with the induction of a frameshift mutation resulting in an inactive protein B. following a splice with a restriction enzyme, the sticky ends can be combined with a piece of donor DNA that has the same sticky ends C. genes from two different sources can be joined together when the wild-types contain homology between the two molecules, allowing DNA ligase to join the naturally-occurring sticky ends D. following a splice with Cas9, the ends of the chromosome can be seamlessly joined with a piece of donor DNA that has been engineering to contain flanking sequences homologous to the broken chromosome ends