Plants And Society 6th Edition by Estelle Levetin Test Bank

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Plants And Society 6th Edition by Estelle Levetin Test Bank

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WITH ANSWERS

Plants And Society 6th Edition by Estelle Levetin Test Bank

Chapter 06

Plant Life Cycle: Fruits and Seeds

 

 

Multiple Choice Questions

  1. What part of the flower develops into a seed after fertilization?
    A.ovary
    B. carpel
    C. sepal
    D. ovule

 

  1. Each segment of an orange develops from a:
    A.sepal
    B. stamen
    C. anther
    D. carpel

 

  1. A cucumber is an example of a:
    A.berry
    B. pepo
    C. hesperidium
    D. capsule

 

  1. Which of the following fruits was long thought to be poisonous?
    A.pumpkins
    B. tomatoes
    C. grapes
    D. bananas

 

 

  1. Which of the following fruits is a hesperidium?
    A.apple
    B. raspberry
    C. orange
    D. banana

 

  1. A common example of a multiple fruit is:
    A.strawberry
    B. apples
    C. watermelon
    D. pineapple

 

  1. Which of the following fruits is a pome?
    A.pear
    B. cantaloupe
    C. peach
    D. kiwi

 

  1. Which of the following is an aggregate fruit?
    A.watermelon
    B. grape
    C. strawberry
    D. pineapple

 

  1. Which of the following citrus fruits originated in the New World as the result of a cross between an orange and a pummelo?
    A.tangerine
    B. lemon
    C. navel orange
    D. grapefruit

 

 

  1. After fertilization, the ovary of a flower develops into a:
    A.seed
    B. fruit
    C. pistil
    D. stamen

 

  1. A fleshy fruit with a stony pit, like a cherry, is a:
    A.nut
    B. drupe
    C. berry
    D. pepo

 

  1. A dry fruit which splits along two seams, like a pea pod, is a:
    A.legume
    B. capsule
    C. follicle
    D. nut

 

  1. The type of fruit common to rice, corn, and wheat is:
    A.nut
    B. achene
    C. legume
    D. grain

 

  1. A dry dehiscent fruit which splits along one seam is a:
    A.silique
    B. nut
    C. follicle
    D. capsule

 

 

  1. A winged fruit is known as a:
    A.nut
    B. achene
    C. samara
    D. schizocarp

 

  1. A fleshy fruit usually having many seeds and a thin skin is a:
    A.hesperidium
    B. berry
    C. pepo
    D. drupe

 

  1. Which hormone is a gas that hastens fruit ripening?
    A.auxin
    B. abscisic acid
    C. ethylene
    D. gibberellin

 

  1. The application of which hormone will result in normal growth when applied to dwarf plants?
    A.auxin
    B. cytokinin
    C. gibberellin
    D. abscisic acid

 

  1. To make a seed break dormancy, it could be treated with:
    A.abscisic acid
    B. auxin
    C. ethylene
    D. gibberellin

 

 

  1. To keep cut flowers fresh, which hormone would be applied?
    A.cytokinin
    B. auxin
    C. ethylene
    D. gibberellin

 

  1. While the responses to plant hormones are normally slow, one hormone has been shown to be involved in the rapid opening and closing of stomata when plants are suffering from a water deficit. The hormone is:
    A.abscisic acid
    B. auxin
    C. ethylene
    D. cytokinin

 

  1. Bromeliads (members of the pineapple family) may be induced to flower by placing the plant in a plastic bag with a ripe fruit. What hormone is responsible for their flowering?
    A.auxin
    B. ethylene
    C. gibberellin
    D. cytokinin

 

  1. What marking is produced when the seed separates from the ovary wall?
    A.testa
    B. micropyle
    C. hilum
    D. coleorhiza

 

 

True / False Questions

  1. Phototropism is a growth response to gravity.
    FALSE

 

 

  1. Application of abscisic acid will cause leaves to drop from trees.
    TRUE

 

  1. The SEEDS project demonstrated that conditions of weightlessness and exposure to cosmic radiation were inhibitory to the germination of tomato seeds.
    FALSE

 

  1. Overharvesting of timber has caused the near extinction of the American chestnut.
    FALSE

 

  1. Botanically speaking, a fruit is a ripened ovary.
    TRUE

 

  1. Dry fruits that dehisce are an adaptation to disperse seeds.
    TRUE

 

  1. Monocots have only one cotyledon or seed leaf.
    TRUE

 

  1. Although widely cultivated in California and Florida today, oranges and other citrus fruits are native to Brazil.
    FALSE

 

 

Fill in the Blank Questions

  1. The navel in a navel orange is actually an aborted _______.
    ovary

 

 

  1. The _______ became very popular in the North American market after its name was changed from the Chinese gooseberry.
    kiwifruit

 

  1. During seed germination the _______ of the embryo emerges first.
    radicle

 

  1. Lemons and limes are examples of the fruit type known as a _______.
    hesperidium

 

  1. Achenes, nuts, and grains are all types of dry ________ fruits.
    indehiscent

 

  1. Botanically, a tomato is considered a fleshy fruit called a ________.
    berry

 

  1. The ____________ is a protective covering around the shoot of a monocot seedling.
    coleoptile

 

  1. The largest citrus fruit is the ____________.
    pummelo

 

  1. The juice of the __________ may dangerously elevate blood levels of certain prescription drugs.
    grapefruit

 

 

  1. __________ are fruits from tropical Asia which are known as much for their heavenly taste as for their foul smell.
    Durians

Chapter 07

Genetics

 

 

Multiple Choice Questions

  1. Hereditary information in the cell is carried in:
    A.RNA
    B. DNA
    C. ATP
    D. lipids
    E. proteins

 

  1. An organism with two identical alleles for a given trait would be called:
    A.homozygous
    B. heterozygous
    C. a mutation
    D. dominant
    E. recessive

 

  1. Who is considered the founder of genetics?
    A.Darwin
    B. Linnaeus
    C. Mendel
    D. Watson
    E. Lemarck

 

  1. Which of the following crosses will produce offspring that show the recessive phenotype?
    A.Yy x YY
    B. YY x yy
    C. Yy x Yy
    D. YY x Yy
    E. YY x YY

 

 

  1. In a cross between a pure breeding tall plant (dominant) and a pure breeding dwarf plant (recessive) the genotype of the offspring will be:
    A.TT
    B. Tt
    C. tt
    D. 3Tt:1tt
    E. 1TT:1Tt

 

  1. In a cross between a pure breeding tall (dominant) plant and a pure breeding dwarf (recessive) plant, the phenotype of the offspring will be:
    A.3 tall: 1 dwarf
    B. 1 tall: 1 dwarf
    C. all tall
    D. all dwarf

 

  1. In a cross between a heterozygous smooth-seeded (Ss) plant and a homozygous wrinkled-seeded (ss) plant, what would be the phenotypes of the offspring?
    A.all smooth
    B. all wrinkled
    C. 3 smooth:1 wrinkled
    D. 1 smooth:1 wrinkled

 

  1. An organism bearing two different alleles for a genetic trait would be referred to as:
    A.homozygous
    B. heterozygous
    C. homothallic
    D. heterothallic
    E. haploid

 

 

  1. A _____ allele is only expressed in the homozygous condition.
    A.recessive
    B. dominant
    C. aggressive
    D. linked
    E. diploid

 

  1. The appearance or expression of a trait is known as its:
    A.phenotype
    B. allele
    C. genotype
    D. segregation
    E. dominance

 

  1. If plants which are heterozygous for 2 characters are self pollinated the resulting offspring can be predicted to produce phenotypes in the following ratio:
    A.1:1:2
    B. 2:1
    C. l:l:l:l
    D. 9:3:3:1
    E. 3:3:1:1

 

  1. In Mendels work with peas, an F1 hybrid (smooth yellow) was crossed to the recessive (wrinkled green) parent type. In terms of color, what were the frequencies of the phenotypes in the offspring of this cross?
    A.all green
    B. all yellow
    C. 1/2 green and 1/2 yellow
    D. 3/4 yellow and 1/4 green
    E. none of the above

 

 

  1. In the above cross, what was the genotype for color in the yellow peas (the F1hybrid)?
    A.YY
    B. yy
    C. Yy
    D. all of the above
    E. some YY and some Yy

 

  1. The genetic code consists of 64 codons. How many of these are terminator codons?
    A.all 64
    B. 61
    C. 32
    D. 3
    E. 1

 

  1. If the mRNA codon is AUC, the tRNA anticodon would be:
    A.TAG
    B. TTG
    C. CAU
    D. UAG
    E. CUA

 

  1. Which of the following is an RNA codon?
    A.TAT
    B. CGT
    C. AAC
    D. GAT
    E. all of the above

 

 

  1. If a portion of a DNA molecule being transcribed is ATCCGATGA, then the complementary portion of mRNA would read:
    A.ATCCGATGA
    B. TAGGCTACT
    C. UAGGCUACU
    D. AUCCGAUGA
    E. GCAATGCAG.

 

  1. Transcription is a process that refers to:
    A.DNA reproduction
    B. production of mRNA
    C. reading of an mRNA strand
    D. coding of DNA
    E. translating of DNA

 

  1. Translation occurs at:
    A.ribosomes
    B. amyloplasts
    C. the nucleus
    D. the nucleolus
    E. plasma membrane

 

  1. A point mutation is a change of:
    A.a centromere
    B. a whole chromatid
    C. a single base
    D. a whole chromosome
    E. a single codon

 

 

  1. Alternate forms of a gene are referred to as:
    A.alleles
    B. loci
    C. mutations
    D. chromatids
    E. none of the above

 

 

Fill in the Blank Questions

  1. When a genotype consists of two identical alleles, it is said to be ______.
    homozygous

 

  1. According to Mendels Principle of _______ a pair of alleles separate from each other during the formation of gametes.
    Segregation

 

  1. Genes are segments of the _______ molecule.
    DNA

 

  1. The genetic make-up of an organism is known as its _______.
    genotype

 

  1. A small circular piece of DNA found in bacterial cells is called a _______.
    plasmid

 

  1. ______ enzymes cut the DNA molecule at specific base sequences.
    Restriction

 

 

  1. If genes are on the same chromosome they will be inherited together; this condition is referred to as ____.
    linkage

 

  1. If neither allele is dominant, both alleles are expressed independently in the heterozygote; this condition is called ______.
    co-dominance

 

  1. _______ is the molecule which carries genetic information from the DNA to the ribosomes.
    mRNA

 

  1. Portions of the mRNA molecule that are removed before translation are known as _______.
    introns

 

  1. Linkage was first described by British geneticists Bateson and _______.
    Punnett

 

  1. ______ and Crick described the structure of the DNA molecule.
    Watson

 

  1. A protein composed of 50 amino acids would be coded for by a gene _______ bases long.
    150

 

  1. The nucleotide base _______ pairs with adenine in DNA.
    thymine

 

 

  1. A ______ is a segment of the DNA molecule that codes for one polypeptide or one protein.
    gene

 

  1. During transcription, a molecule of ______ is formed using DNA as a template.
    mRNA

 

 

True / False Questions

  1. The scientist who laid down the groundwork in genetics was an Austrian monk by the name of Gregor Mendel.
    TRUE

 

  1. Recessive traits are expressed only in the heterozygous condition.
    FALSE

 

  1. When a cross is made between parents heterozygous for two traits, it is called a monohybrid cross.
    FALSE

 

  1. Phenotype indicates the genetic makeup of an organism.
    FALSE

 

  1. In sesame plants, the one pod condition (P) is dominant to the three pod condition (p). A cross between PP and Pp would result in a 1:1 ratio of one pod to three in the offspring.
    FALSE

 

 

  1. Translation results in the formation of mRNA as a complementary copy of DNA.
    FALSE

 

  1. Plasmids can serve as vectors for creating recombinant DNA molecules.
    TRUE

 

  1. Somatic mutations are always passed along to offspring.
    FALSE

 

  1. SNPs are locations in human DNA in which a single nucleotide base differs among individuals.
    TRUE

 

  1. Approximately 99.9% of the human genome consists of genes, DNA that codes for proteins.
    FALSE

 

 

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