Genetics

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    Created by @irism252516

    What are alleles?

    Different versions of a gene.

    What is a dominant allele?

    It prevents the expression of other alleles.

    What is a recessive allele?

    It is masked by dominant alleles.

    What defines homozygous?

    Having two identical alleles for a trait.

    What defines heterozygous?

    Having two different alleles for a trait.

    What is a monohybrid cross?

    A genetic cross focusing on one trait.

    What causes cystic fibrosis?

    A recessive allele leads to this condition.

    What are symptoms of cystic fibrosis?

    Includes mucus buildup and breathing difficulties.

    What causes Huntington's disease?

    A dominant allele results in this condition.

    What are symptoms of Huntington's disease?

    Includes speech loss and memory issues.

    What is genetic engineering?

    Transferring genes between organisms.

    What is a benefit of genetic engineering?

    It can enhance food nutrition and shelf life.

    What is a disadvantage of genetic engineering?

    It may increase allergy risks.

    What is variation in biology?

    Differences among individuals of the same species.

    What causes variation?

    A combination of genetics and environmental factors.

    What is a phenotype?

    The observable traits of an organism.

    What is a zygote?

    A fertilized egg that develops into a new organism.

    What is the role of the nucleus in a cell?

    It contains chromosomes made of DNA.

    What adaptations do sperm cells have?

    A tail for swimming and minimal cytoplasm.

    What adaptations do egg cells have?

    A large cytoplasm for energy storage and genetic info.