Question

1. In a monohybrid cross, (a) only one trait is being considered. ib) the parents are always dominant. is the parents are always heterozygous. (d) no hybrid is produced. 7. The gametophyte of a fomu (a) haploid. (b) photoautotrophic. (c) a structure that produces eggs and/or sperm (d) all of the above 8. A chi-square test is used to (a) determine if experimental data adequately matches what was expected. (b) analyze a Punnett square. (c) determine parental genotypes producing a given offspring genotype. (d) determine if a trait is dominant or recessive. 2. The genetic makeup of an organism is its (a) phenotype. (b) genotype. (c) locus. (d) gamete. 3. An allele whose expression is completely masked by the expression or effect of its allelic partner is (a) homologous. (b) homozygous. (c) dominant. (d) recessive. 4. The physical appearance and physiology of an organism, resulting from interactions of its genetic makeup and its environment, is its (a) phenotype. (b) hybrid vigor. (c) dominance. (d) genotype. 5. When both dominant and recessive alleles are present within a single nucleus, the for the trait (a) diploid (b) haploid (c) homozygous (d) heterozygous 9. Possible gamete genotypes produced by an individual of genotype PpDd are (a) Pp and Dd. (b) all PpDd. (c) PD and pd. (d) PD, Pd, PD, and pd. 10. If you can roll your tongue, (a) you have at least one copy of the dominant allele T. (b) you have two copies of the recessive allelet. (c) you must be male. (d) you are haploid. 6. A Punnett square is used to determine (a) probable gamete genotypes. (b) possible parental phenotypes. © possible parental genotypes. (a) possible genetic outcomes of a cross.

Answer 1

correct answer for 1 is (a).

for 2 is (b).

for 3 is (d).

Explanation is given below:
WETT 1) (b) • Gregor Mendel • Pea plant • Height - 1 Parental Generation Tall TT Dwarf tt X Gametes T-Dominant! it- Recessive S fi Generation Tt at Phenotype- All Tall It Tt Genotype - Tt Gametes Tt X Tt I t T t fa Generation T t Tt TT Tall Tt Tall tt Dwart Phenotypic uatio - 3 Tall 1 Dwarf 13:1 Genotypic ration ITT QTt itt 1:2:1) considered in a The only one monohybrid trait is cross. being

(2) +b) Pg No - 2 The actual gene makeup of an organesm is called the genotype. Phenotype is the actual prysical. Expression of an individual's genes, DNA It is called a Genotype. (3)-(d) Recessive An allele whose Expression is completely masked by the expression or effect of its allelic parter is recessive because it to would not express it's character.