
Genética e Divisão Celular
Biology
10th Grade
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o principal objetivo da meiose nas células eucarióticas?
Produzir células idênticas à célula-mãe
Reduzir o número de cromossomos pela metade
Reparar danos no DNA
Produzir energia para a célula
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Durante qual fase da meiose ocorre o crossing-over, promovendo variabilidade genética?
Prófase I
Metáfase II
Telófase I
Anáfase II
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é um gene?
Uma molécula de proteína
Um segmento de DNA que codifica uma proteína
Um tipo de célula
Um cromossomo inteiro
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das alternativas representa corretamente a estrutura do DNA?
Cadeia dupla de nucleotídeos
Cadeia simples de aminoácidos
Cadeia tripla de lipídios
Cadeia dupla de polissacarídeos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A manipulação genética pode ser definida como:
A reprodução assexuada de plantas
A alteração intencional do material genético de um organismo
A divisão celular por mitose
A síntese de proteínas no ribossomo
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a função principal do RNA mensageiro (mRNA)?
Armazenar energia
Transportar informações do DNA para o ribossomo
Catalisar reações químicas
Formar a membrana celular
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que ocorre durante a fecundação na embriologia?
Divisão do zigoto em várias células
União do espermatozoide com o óvulo
Formação dos órgãos do embrião
Implantação do embrião no útero
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