Homozygous and Heterozygous
Trending Questions
The cross between an individual with unknown genotype and recessive parent is called a ___.
Top cross
Inter cross
Test cross
Batch cross
Which of the following represent(s) a heterozygous condition?
Tt
tt
Both A and C
TT
A couple with curly haired husband and straight haired wife have all their children curly haired because
Husband is homozygous and wife is heterozygous
Husband is heterozygous while wife homozygous
Both are homozygous
Both are heterozygous
Two dominant alleles
Two recessive alleles
One dominant allele and one recessive allele
One dominant trait and one recessive trait
A cross is made between true breeding lines of pea plants with axillary (A) and terminal (a) flowers. What is the ratio between the number of possible genotypes of homozygous and heterozygous plants in F2 progeny?
3:1
1:2:1
1:1
1:1:2
Repeated selfing produces:
Impure hybrids
Heterozygosity
Homozygosity
Pure hybrids
A parent that produces only one type of gamete for an allele is called:
Heterozygous
Homozygous
Homologous
Hemizygous
A person who is said to be homozygous has
Two dominant alleles
Two recessive alleles
One dominant allele and one recessive allele
One dominant trait and one recessive trait
An organism with two identical copies of the same gene is called
Phenotype
Genotype
Heterozygote
Homozygote
Match the following:
Column IColumn IIA. Locus1. Genetic makeup of an organism.B. Homozygous2. Both the alleles of a gene are non-identical.C. Heterozygous3. Both the alleles of a gene are identical.D. Phenotype4. Position of gene on chromosome.E. Genotype5. Physical expression of gene.A-4, B-3, C-2, D-5, E-1
A-4, B-3, C-2, D-1, E-5
A-1, B-1, C-3, D-4, E-5
A-5, B-4, C-3, D-2, E-1