Answer:
The sequence data that would support this hypothesis would involve there being relatively more differences found between the three mitochondrial genes' sequences of the La Plata River dolphin and the sequences of the Chinese River dolphin.
There should also be fewer differences between the three mitochondrial genes' sequences of the La Plata River dolphin and the sequences of the Amazon River Dolphin.
Explanation:
This is because fewer differences between the mitochondrial gene sequences of two species indicate closer relatedness and more differences indicate lower relatedness.
Answer:
<em>a. Cross-sectional study</em>
Explanation:
A cross-sectional analysis <em>includes at one particular point in time looking at data from a population.</em> Participants are chosen based on specific variables of interest in this type of study.
For developmental psychology, cross-sectional experiments are often used, but this approach is also used in many other fields, including social science and education.
Answer options:
- In a bilayer with the phospholipids alternating the orientation of the phosphate heads and tails in a regular pattern.
- In a bilayer with the fatty acid tails on the outside in contact with the extracellular environment and cytoplasm and the phosphate heads sandwiched in between.
- In a single layer with the phosphate heads in contact with the extracellular environment and the fatty acid tails in contact with the cytoplasm.
- In a single layer with the fatty acid tails in contact with the extracellular environment and the phosphate heads in contact with the cytoplasm.
Answer:
- In a bilayer with the fatty acid tails on the outside in contact with the extracellular environment and cytoplasm and the phosphate heads sandwiched in between.
Explanation:
The phosphate heads are polar, and will therefore avoid the nonpolar solution on the inside and outside of the cell. Instead, they will huddle together and face towards each other.
The fatty acid tails are non-polar and are not repelled by this solution, so will face the outside.
Essentially, the orientation of the phospholipid bilayer would be flipped from its normal arrangement.