SCIENCES AND ENGLISH

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What Is a Gene Mutation?

A gene mutation (myoo-TAY-shun) is a change in one or more genes. Some mutations can lead to genetic disorders or illnesses.

What can a genetic mutation cause?

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Do Parents Pass Gene Mutations to Children?

If a parent carries a gene mutation in their egg or sperm, it can pass to their child. These hereditary (or inherited) mutations are in almost every cell of the person's body throughout their life.

Complete the following sentence:

If a parent carries a gene mutation.....

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What Is DNA?

DNA (deoxyribonucleic acid) is the carrier of all our genes. Each person gets one copy of DNA from their mother and one copy from their father. DNA creates a code using four chemicals called nucleotides (NEW-klee-uh-tydes). This code determines which genes a person has. DNA is located inside the chromosomes.

* Does each person get one copy of DNA from their mother and one copy from their father?

1. El daltonismo es la incapacidad de ver los colores de manera normal, desde su nacimiento. La dificultad reside principalmente en diferenciar los colores rojos y verdes, aunque también con frecuencia los tonos azules. Es una alteración que ocurre en el ADN de las células nerviosas (neuronas), ocasionando un problema con los pigmentos del ojo que perciben el color.

Las características anteriores corresponden a:

1. La fibrosis quística es una enfermedad genética donde la mutación ocurre en las células sexuales de los padres. En esta enfermedad, el organismo genera mucosidad muy espesa y pegajosa. La mucosidad genera problemas en los pulmones, el páncreas y otros órganos. Considerando lo anterior, se puede afirmar que la fibrosis quística es:

How many conditionals do we have in English?

What is the condition in the following sentence?

•If my mother has a son but he is not with my father, he is my halfbrother

What is the result clause in the following sentence?

My baby will be affected if I have a baby with a man who has a dominant gene.