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bacteria, classification of life, human biology and reproduction

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1. Which members of the bacteria are used to produce most of the antibiotics used in medicine today?
A) cyanobacteria B) actinomycetes C) spirochaetes D) archaebacteria

2. Bacterial cells that have spherical shapes are given the name
A) bacillus B) coccus C) spirillum D) none of these

3. A bacteria that has a cell wall composed of chemicals that readily absorb certain chemical lab dye and become stained are called
A) gram -positive bacetria B) gram-negative bacteria
C) archaebacteria D) none of these

4. What is the correct order for the taxons of life from most general to most specific?
A) kingdom, phylum, order, class, family, species, genus
B) phylum, kindom, class, order, genus, family, species
C) kindom, phylum, class, order, family, genus, species
D) class, phylum, order, kingdom, family, genus, species

5. What two organisms listed below are the most closely related?
A) pan troglodyte and zea mays
B) zea mays and canis lupus
C) canis lupus and folis domestica
D) felis domestica and pan troglodyte
E) canis familiaris and canis lupus

6. What is a close estimate of the number of classified organisms on the planet?
A) 100, 000 B) 500, 00 C) 2 million D) 20 million

7. What binomial nomenclature name for human beings is written correctly below?
A) Homo Sapien B) homo Sapein C) Homo sapien D) Homo sapien

8. What is the normal genetic condition of a human zygote?
A) Monoploid B) Haploid C) Diploid D) A and B E) none of these

9. In humans, the process of fertilization normally takes place in what structure?
A) Vigina B) Oviduct C) Uterus D) Ovary

10. Each human gamete contains
A) The diploid number of chromosomes
B) 45 chromosomes
C) 23 chromosomes
D) 23 genes

11. True of false: Mendel's genetics are a form of blending inheritance
A) True B) False

Fill in the blanks for questions 12-17:

Possible answers for 11-16:
A. morphs B. recombinants C. pleiotrophy D. epistasis
E. locus F. address G. combination H. linkage group
I. alleles J. incomplete dominance K. codominance

12. Where a gene is found ___________________________________?
13. One gene interferes with or masks the effect of another gene ____________________
14. Genes that tend to stay together on a chromosome during meiosis_________________
15. Gene has multiple effets on phenotype as in Marfanss syndrome_________________
16.Genes for human blood types show this____________________________________
17. Genes for flower color in snapdragons and petunias are examples of this___________

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1. Which members of tbacteria are used to prouce most of the antibiotics used in medicine today?
A) cyanobacteria B) actinomycetes C) spirochaetes D) archaebacteria

Actinomycetes have yielded most of the antibiotics used in medicine (especially Streptomyces species). Actinomycetes is a group of bacteria that form branching filaments.

2. Bacterial cells that have spherical shapes are given the name
A) bacillus B) coccus C) spirillum D) none of these

Bacteria can be classified by shape: spherical (coccus), rod (bacillus), and twisted rod (spirillum).

3. A baceria that has a ceel wall composed of chemicals that readily absorb certain chemical lab dye and become stained are called
A) gram -positive bacetria B) gram-negative bacteria
C) archaebacteria D) none of these

Gram-positive bacteria have a cell wall that is stained by the violet stain used in Gram's method.

4. What is the correct order for the taxons of life from most general to most specific? will be a boy?
A) kingdom, phylum, order, class, family, species, genus
B) phylum, kindom, class, order, genus, family, species
C) kindom, phylum, class, order, ...

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