Las características sexuales primarias y secundarias se refieren a rasgos físicos específicos que diferencian a machos y hembras en especies sexualmente dimórficas; Es decir, especies en las que los machos y hembras se ven diferentes. Las características sexuales primarias están allí desde el nacimiento (por ejemplo, penes vs. vaginas). Las características sexuales secundarias surgen en la pubertad (como las voces bajas y las barbas en los hombres, las voces altas y el pelo facial en las mujeres).
Answer:
Cartilaginous fish include sharks, rays, skates and chimaeras. There are approximately 600 different species of rays and skates and about 500 shark species. Rays and skates live in oceans throughout the world.
Explanation:
A substitution missense affects only one codon, but a frameshift missense affects all codons downstream of the frameshift.
A frameshift mutation occurs during deletion of one of two nucleotides. The arrangement of codons downstream of the mutation will definitely change, hence it being called a frameshift mutation. On the other hand, a substitution mutation will only cause a change in one nucleotide of one codon.
Explanation:
A frameshift mutation causes new codons downstream of the mutation that will code for different amino acids hence changing the properties of the translated proteins. This will have great ramifications for the phenotype of the organism.
On the other hand, substitution mutation will only cause a change in the amino acid at that point of mutation during translation. This will not have a drastic change in the protein hence will not be as lethal as a frameshift mutation.
Learn More:
For more on mutations check out;
brainly.com/question/11278415
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KELPEL!!!
Okay, so prokaryotes cell division is different from eukaryotes because the prokaryotes cells are simpler and are smaller if I'm correct.
Eukaryotes on the other hand have more complex cells, and it takes longer for the cells to divide and multiply because of this.
Hope this helps!
Just let me know if you need anymore help!
Answer: True
Explanation: Peripheral vascular disease (PVD) is a blood circulation disorder that causes the blood vessels such as arteries (atherosclerosis) and veins outside the heart and brain to narrow, block, or spasm. PVD causes pain and fatigue especially during exercise. Risk factors may include ageing, diabetes and smoking.