Las mutaciones son cambios permanentes en la secuencia de ADN. ¿Cuál mutación tendrá un mayor impacto en la formación de un polipéptido?

A.
Un cambio en el ADN de ACC a ACT.

B.
Un cambio en el ADN de ATC a ACT.

C.
Un cambio en el ADN de CGT a CGC.

D.
Un cambio en el ADN de TGA a TGT.

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water

The table above shows five different types of chromosomal abnormalities that can occur during meiosis. they result in either an individual having too many or too few chromosomes in their genome. what is the most likely cause of these chromosomal abnormalities?