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Quarter 2 - Genetics

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Questions and Answers

What is the definition of homozygous?

Having two different alleles for a trait

Having two identical alleles for a trait (correct)

Only possessing one allele for a trait

Exhibiting traits from both parents in equal measure

Which of the following is true about a diploid organism?

It has one set of chromosomes

It is always haploid

It can undergo meiosis without any changes

It contains two copies of each chromosome (correct)

What does a Punnett square visually represent?

The evolution of traits over generations

The physical development of an organism

Possible genotypes and phenotypes of offspring (correct)

The genetic makeup of the parents only

Which condition results in a blend of traits from both parents?

Incomplete dominance Signup and view all the answers

In genetics, what does a pedigree chart illustrate?

Genetic traits in individuals across multiple generations Signup and view all the answers

What is the primary function of lysosomes in a cell?

Digestion of macromolecules Signup and view all the answers

Which process involves the movement of substances into a cell against their concentration gradient?

Active transport Signup and view all the answers

During which phase of cellular division do chromosomes line up at the cell's equator?

Metaphase Signup and view all the answers

What is produced as a waste product during lactic acid fermentation?

Lactic acid Signup and view all the answers

Which of the following statements accurately describes the role of chlorophyll in photosynthesis?

It captures sunlight to convert into chemical energy. Signup and view all the answers

Which of the following correctly defines homeostasis?

The ability of an organism to maintain a constant internal environment. Signup and view all the answers

What is the role of a hypothesis in scientific research?

To serve as a testable statement that can be supported or refuted through experimentation. Signup and view all the answers

In a chemical reaction represented by the equation CO2 + H2O → H2CO3, what are the reactants?

CO2 and H2O Signup and view all the answers

Which statement correctly describes valence electrons?

They determine the chemical reactivity of an element. Signup and view all the answers

Which part of the pH scale represents a neutral solution?

7 Signup and view all the answers

Study Notes

Quarter 2 - Genetics

Alleles are different forms of a gene
Heterozygous describes an organism with two different alleles for a particular gene
Homozygous describes an organism with two identical alleles for a particular gene
Codominance occurs when both alleles of a gene are expressed fully in the phenotype
Incomplete dominance occurs when the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes
Haploid cells have a single set of chromosomes
Diploid cells have two sets of chromosomes
Students must create a Punnett square that includes genotype, phenotype, ratios, and probability
A pedigree must be included, properly labeled, shaded, and include 3 generations, along with the Punnett squares

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Description

This quiz covers key concepts in genetics, including definitions of alleles, heterozygous and homozygous genotypes, and phenomena like codominance and incomplete dominance. Students will also be tasked with creating Punnett squares and pedigrees to demonstrate their understanding of genetic inheritance across generations.