Answer:
The type of mutation that causes this translation error is called deletion. Deletion occurs when a section of a DNA is deleted or lost. In cystic fibrosis, three nucleotides are deleted that results in the lost of phenylalanine.
Explanation:
Answer:Acid rain can benefit the environment by blocking one of the most powerful greenhouse gases, scientists said yesterday
Explanation:hope it helps
Answer:
Before cell division, replication of genes and chromosome occurs. Replication is a process in which two small identical copies are formed. When meiosis occurs, these copies are distributed between daughter cells. In meiosis l, the daughter cells which are formed are diploid i. e. double number of chromosomes and in meiosis ll, these two daughter cells are again divided and produce four daughter cells. Each having half number of chromosome.
Answer:
Radiometric methods
Explanation:
radiometric dating method is the most exact method of determining the age of geologic features. This technique is used in order to find out the age of materials such as rocks or fossils of plants and animals etc. In this method the trace radioactive impurities were selectively incorporated when they were formed. Radioactive elements present everywhere in the universe, these radioactive elements tells us about the age of the rock and fossils present in it.
Answer:
D. Both reproduce sexually, but gymnosperms produce pollen cones and seed cones and angiosperms produce flowers or fruit.
Explanation:
Higher plants are grouped into two namely; gymnosperms and angiosperms. Gymnosperms and angiosperms are both vascular seed-bearing plants that make use of sexual reproduction to produce their seeds.
One major difference between the gymnosperms and angiosperms is the way by which they produce their seeds. Angiosperms produce their seeds, which forms from an ovary of a flower, in an enclosure called FRUIT. This is why they are called FLOWERING PLANTS.
On the other hand, gymnosperms produce their seeds on naked structures called CONES. Hence, although they both reproduce sexually, but gymnosperms produce pollen cones and seed cones while angiosperms produce flowers or fruit.
