Genetics yr10

Question 1

Homologous

Answer 1

used to describe members of each matching pair of chromosomes.

Question 2

Homozygous

Answer 2

having two identical alleles for characteristic in genotype

Question 3

Sex chromosomes

Answer 3

chromosomes that differ in males and females

Question 4

Recessive

Answer 4

trait that is only expressed in absence of allele for dominant trait.

Question 5

Genotype

Answer 5

genetic instructions inherited from parents at particular gene locus.

Question 6

Phenotype

Answer 6

characteristics that result from expression of organism’s genotype.
Depends on both genotype and environment.

Question 7

Recombinant DNA

Answer 7

DNA molecules formed by laboratory methods

Question 7

Autosomes

Answer 7

Non-sex chromosomes

Question 9

heterozygous

Answer 9

Having two different alleles for characteristic

Question 10

carrier

Answer 10

Person not showing recessive gene because has heterozygous genotype for the characteristic.

Question 11

Codominance

Answer 11

type of inheritance in which heterozygous shows expression of both alleles in phenotypes

Question 12

Inheritance

Answer 12

genetic transmission of characteristics from parents to offspring

Question 13

Genetics

Answer 13

study of inheritance

Question 14

incomplete dominance

Answer 14

Inheritance that heterozygous shows expression of two alleles in phenotype in blending both characteristics

Question 15

Karyotype

Answer 15

number and general appearance of set of chromosomes in somatic cells

Question 16

alleles

Answer 16

Alternative forms of gene for particular characteristics

Question 17

dominant

Answer 17

Refers to trait that requires only one alleles be present for expression in heterozygous