Answer:
The most important feature that permits a gene to act as a molecular clock is having a reliable average rate of mutation.
Explanation:
The molecular clock is also known as the “evolutionary clock” or “gene clock”. These was studied by scientists suchs as Darwin, and it made possible for paleontologists to study humanity evolution. <em>Through this idea we talk about the biological concept of heredity: we inherit information in the form of genetic molecules (usually DNA) from the previous generation</em>. This is possible thanks to Mutation. In mutation, DNA and protein sequences evolve DNA and protein sequences evolve over time and among different organism.
Answer:
Scientists have discovered the specific mutation that famously turned moths black during the Industrial Revolution. In an iconic evolutionary case study, a black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat
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Explanation:
A or D I would say A is the one
Answer:
The swim bladder is located in the body cavity and is derived from an outpocketing of the digestive tube. It contains gas (usually oxygen) and functions as a hydrostatic, or ballast, organ, enabling the fish to maintain its depth without floating upward or sinking.
Explanation:
Lactase is a protein (enzyme) that speeds up the breakdown of lactose (milk sugar) into the simple sugars (glucose and galactose). Lactase is found in the small intestine of mammals and it is abundant during infancy but declines with age. Lactase is produced by the enterocytes (cells) that covers the intestinal walls and it creates the chemical barrier through which food molecules must cross for absorption by the intestines.