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Genetics and Cell Division Quiz

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Questions and Answers

What is the function of mRNA?

To produce genetically different daughter cells during meiosis

To control gene expression by influencing the binding of RNA polymerase to DNA

To carry genetic information from the nucleus to the ribosomes during protein synthesis (correct)

To carry genetic information from the ribosomes to the nucleus

What is the role of non-coding DNA?

To control gene expression by influencing the binding of RNA polymerase to DNA (correct)

To produce genetically different daughter cells during meiosis

To carry genetic information from the ribosomes to the nucleus

To code for a protein

What term describes the existence of more than two alleles of a gene?

Meiosis

Phenotype

Multiple alleles (correct)

Homozygous

What is the result of mutation in the base sequence of DNA?

Genetic variants which may be beneficial, damaging, or neutral Signup and view all the answers

What is the term for a sequence of three bases in a gene that code for a particular amino acid?

Base triplet Signup and view all the answers

In genetics, what is classified as A, B, or O based on surface antigens on red blood cells and the presence of certain antibodies in the plasma?

Blood group Signup and view all the answers

What is the term for a long, coiled molecule of DNA that carries genetic information in the form of genes?

Chromosome Signup and view all the answers

What do we call the classification of blood type as A, B, or O based on surface antigens on red blood cells and the presence of certain antibodies in the plasma?

Blood group Signup and view all the answers

Which term describes differences in phenotype acquired during the lifespan of an organism due to environmental factors?

Environmental variation Signup and view all the answers

What is the term for a chart used to show the inheritance of genetic disorders in a family?

Family pedigree Signup and view all the answers

What does the term 'Heterozygous' refer to?

When someone has two different alleles of a gene Signup and view all the answers

What is a haploid cell?

A cell that contains a single copy of each chromosome Signup and view all the answers

What is the function of RNA polymerase in transcription?

Unzips the DNA strands and joins free RNA nucleotides to complementary bases on the coding DNA strand Signup and view all the answers

What is the role of tRNA in protein synthesis?

Carries specific amino acids to the ribosomes during protein synthesis Signup and view all the answers

What is the function of a Punnett square?

Predicts the potential outcomes of a genetic cross Signup and view all the answers

What does the term 'recessive' describe?

Describes an allele that is only expressed in the absence of a dominant allele Signup and view all the answers