Problems related to STDs affects male reproductive system. STD can also affect male fertility. Chlamydia, when left untreated, may spread to the testicles from the urethra, causing permanent sterility and disability. Pelvi inflammatory disease is common STD that affects fertility. A low sperm count and low sperm motility are indicators of this condition. Also, elevated FSH levels and other hormonal problems are indicative of testicular damage. Some STDs like gonorrhea and chlamydia can cause infertility by blocking the epididimis or tubes.
It led to an understanding of how cancer cells divide so rapidly
- TGA (opal)
Answer:
Explained below
Explanation:
A mutation in a gene that results in total loss of the normal function of the gene product encoded by that gene, resulting in a Null phenotype.
Changes in DNA sequence are termed as nonsense mutation that introduce a stop codon, resulting in a non functional protein. This terminology results stop codons have also worked as nonsense codons.
There are three different stop codon-
In RNA
- UAG (amber)
- UAA (ochre)
- UGA (opal)
In DNA
- TAG (amber)
- TAA (ochre)
- TGA (opal)
Answer:
The bound together cell hypothesis expresses that: all living things are made out of at least one cell; the cell is the fundamental unit of life, and new cells emerge from existing cells.
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