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Nature and Nurture: Genetics Overview

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Questions and Answers

What term describes the physical characteristics that result from genetic inheritance?

Chromosome

Allele

Genotype

Phenotype (correct)

What must occur for a recessive gene to manifest in an individual?

It must be paired with another dominant gene.

It must be paired with another recessive gene. (correct)

It must be the only gene present in the allele pair.

It must be expressed alongside an environmental factor.

Which of the following accurately describes a dominant gene?

It supersedes the expression of recessive genes. (correct)

It is always inherited from one parent only.

It does not influence the phenotype of an individual.

It requires an environmental factor to be expressed.

If a Punnett square shows a genotype of 'Bb', what can be inferred about the alleles inherited?

<p>One parent contributed a dominant allele and the other a recessive allele.</p> Signup and view all the answers

Which component of genetic material is organized into 46 chromosomes within the cell nucleus?

<p>DNA</p> Signup and view all the answers

Study Notes

Nature and Nurture

Prenatal
Postnatal
Infancy and childhood
Adolescence and adulthood

Nature: Effects of Genetics

Heredity: The transmission of genes from both parents to offspring
Examples of genetic traits: Eye color, skin color, physical size, susceptibility to diseases

Nature: Effects of Genetics

Genome: The nucleus of every cell contains DNA, which is the genetic code
Chromosomes: DNA is organized into 46 chromosomes (23 from each parent)
Gene: A gene is a section of a chromosome
Genetic variations: Some variations directly cause health conditions, others may increase or decrease the risk of a condition.

Nature: Effects of Genetics

Dominant gene: Controls a trait
Recessive gene: Needs a matching recessive gene from the other parent to express the trait.

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Description

Explore the intricate relationship between genetics and development in this quiz on nature and nurture. Topics include prenatal and postnatal influences, as well as genetic traits and variations. Test your understanding of heredity, chromosomes, and gene expressions.