Ch. 10 & 11

Question 0

Different form of a gene

Answer 0

Allele

Question 1

Scientific study of heredity

Answer 1

Genetics

Question 2

Cell with half the number of chromosomes

Answer 2

Haploid

Question 3

Gene that presents expression of another gene

Answer 3

Dominant

Question 4

Gene that is not expressed in the presence of a dominant gene

Answer 4

Recessive

Question 5

Physical trait or outward appearance

Answer 5

Phenotype

Question 6

Allele pairs, or your gene makeup. Cannot physically see symbols.

Answer 6

Genotype

Question 7

Two alleles are the same

Answer 7

Homozygous

Question 8

Two alleles are different

Answer 8

Heterozygous

Question 9

Complex inheritance pattern in which the heterozygous phenotype is intermediate between those of the two homozygous parent organisms (Mixed)

Answer 9

Incomplete Dominance

Question 10

Complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed (Speckled)

Answer 10

Codominance

Question 11

Reduction division process, occurring only in the reproductive cells, in which one diploid cell produces four haploid cells

Answer 11

Meiosis

Question 12

Characteristic, such as eye colour or skin colour, that results from the interaction of multiple gene pairs

Answer 12

Polygenic Traits

Question 13

I haploid sex cell formed during meiosis, that can combine with another haploid sex cell and produce a diploid fertilized egg

Answer 13

Gametes

Question 14

Exchange of chromosomal segments between a pair of homologous chromosomes during prophase 1 of meiosis

Answer 14

Crossing Over

Question 15

Discovered the basic principles of heredity through experiments in his garden.

Answer 15

Gregor Mendel

Question 16

Having two copies of each chromosome

Answer 16

Diploid

Question 17

Individual heterozygous for a recessive disorder such as cystic fibrosis or Tay-Sachs disease.

Answer 17

Carrier

Question 18

Any chromosome that is not a sex chromosome.

Answer 18

Autosome

Question 19

One of two paired chromosomes, one from each parents, that carries genes for a specific trait at the same location.

Answer 19

Homologous Chromosome

Question 20

Having more than two alleles for a specific trait

Answer 20

Multiple Alleles

Question 21

Micrograph in which the pairs of homologous chromosomes are arranged in decreasing size.

Answer 21

Karyotype

Question 22

Protective cap made of DNA that is found on the ends of a chromosome

Answer 22

Telomere

Question 23

Characteristic, such as red-green colour blindness, controlled by genes on the X chromosome; also called an X-linked trait

Answer 23

Sex Linked Trait

Question 24

Cell division in which the sister chromatids do not separate correctly, resulting in gametes with an abnormal number of chromosomes.

Answer 24

Nondisjunction