3.7 Heredity And Behavior

Question 1

Behavioral Genetics 118

Answer 1

Behavioral Genetics 118 — an inter disciplinary field that studies the influence of genetic factors on behavioral traits.

Question 2

Chromosomes 118

Answer 2

Chromosomes 118 — strands of DNA molecules that carry genetic information.

Question 3

Zygote 118

Answer 3

Zygote 118 — a single cell formed by its union of a sperm and an egg.

Question 4

Genes 118

Answer 4

Genes 118 — DNA segments that’s we’ve as the key functional units in hereditary transmission.

Question 5

Homozygous Condition 119

Answer 5

Homozygous Condition 119 — the two genes in a specific pair are the same.

Question 6

Heterozygous Condition 119

Answer 6

Heterozygous Condition 119 — the two genes in a specific pair are different.

Question 7

Dominant Gene 119

Answer 7

Dominant Gene 119 — the gene that is expressed with the genes are in a Heterozygous Condition 119

Question 8

Recessive Gene 119

Answer 8

Recessive Gene 119 — the gene that is masked when the gene pair is in a Heterozygous Condition 119.

Question 9

Family Studies 120

Answer 9

Family Studies 120 —researchers asses hereditary influence by examining blood relatives to see how much they resemble one another on a specific trait.

Question 10

Genotype 120

Answer 10

Genotype 120 – refers to a person’s genetic makeup.

Question 11

Phenotype 120

Answer 11

Phenotype 120 – refers to the ways in which a person’s genotype is manifested in observable characteristics.

Question 12

Polygenic Traits 120

Answer 12

Polygenic Traits 120 – Traits or characteristics that are influenced by more than one pair of genes.

Question 13

Fraternal twins 121

Answer 13

Fraternal Twins 121 – results when two eggs are fertilized simultaneously by two different sperm cells, resulting in two different zygotes.

Question 14

Identical Twins 121

Answer 14

Identical Twins 121 – results when a zygote splits for unknown reasons.

Question 15

Twin Studies 121

Answer 15

Twin Studies 121 – researchers asses the hereditary influence by comparing the resemblance of identical twins and fraternal twins with respect to a trait.

Question 16

Adoption Studies 122

Answer 16

Adoption Studies 122 – asses hereditary influence by examining the resemblance between adopted children and both their biological and their adoptive parents.

Question 17

Genetic Mapping 122

Answer 17

Genetic Mapping 122 – the process of determining hte location and chemical sequence of specific genes on specific chromosomes.

Question 18

Epigenetics 123

Answer 18

Epigenetics 123 – the study of heritable changes in gene expression that do not involve modifications to the DNA sequence.