Words.

Question 1

heredity

Answer 1

the passing on of physical or mental characteristics genetically from one generation to another

Question 2

Dominant trait

Answer 2

A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.

Question 3

Recessive trait

Answer 3

Recessive traits are those that are expressed or seen only when a homozygous recessive genotype is present

Question 4

Genes

Answer 4

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

Question 5

Alleles

Answer 5

one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.

Question 6

Phonotype

Answer 6

the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment

Question 7

genotype

Answer 7

the genetic constitution of an individual organism.

Question 8

probability

Answer 8

the extent to which something is probable; the likelihood of something happening or being the case.

Question 9

Homologous chromosomes

Answer 9

Homologous chromosomes: A pair of chromosomes that contain the same gene sequences, each derived from one parent

Question 10

meoisis

Answer 10

a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.

Question 11

sex chromosomes

Answer 11

a chromosome involved with determining the sex of an organism, typically one of two kinds.

Question 12

pedigree

Answer 12

the record of descent of an animal, showing it to be purebred.

Question 13

DNA

Answer 13

deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

Question 14

nucleotide

Answer 14

a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.

Question 15

rna

Answer 15

ribonucleic acid, a nucleic acid present in all living cells.

Question 16

mutations

Answer 16

In biology, a mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.