Answer:
Positive Regulation of the Cell Cycle
Two groups of proteins, called cyclins and cyclin-dependent kinases are responsible for the progress of the cell through the various checkpoints.
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All of the continents were once connected (called a supercontinent)
Answer:
a. carry genetic information that influences the same traits.
Explanation:
Homologous chromosomes are the pairs of chromosomes. One chromosome of a pair is derived from the egg cell while the other comes from sperms. Two chromosomes of a pair carry the gene for the same traits. For example, two copies of chromosome 21 would carry the genes for the same traits in humans. However, these two chromosomes of a homologous pair may have the same or different alleles for a particular gene.
If chromosome 21 carries the gene for eye color in humans, the paternal chromosome may have the allele for blue eyes while the maternal chromosome may carry the allele for the black eyes. However, both of them have the "gene for the same traits (eye color)".
The plant evolution has also led to changes in the sporophyte and gametophytes. The sporophytes have apparently beacome larger, and the gametophytes have become samller. Sporophyte like algae were previously single-celled and now evloved to multi-cellular structure. So, Your answer is B.
Answer:
They can invade our bodies and make us ill. They can cause infectious diseases like the flu or measles. Hope this helped and if it did then please mark brainliest. Have a nice day.
