Term
| An extra copy of the 21st chromosome produces |
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Definition
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Term
| The sides of a DNA polynucleotide consists of repeating patter of |
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Definition
| Sugar, phosphate, sugar phosphate |
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Term
| Which of the following is true according to Chargaff’s rule? |
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Definition
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Term
| A gamete that contains excess of lacks bits of chromosomes or whole extra chromosomes is said to be |
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Definition
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Term
| A dihybrid cross between two fully heterozygous individuals entails |
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Definition
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Term
| In one of Mendel’s monohybrid crosses which generation is always completely heterozygous |
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Definition
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Term
| If a sperm cell contains 6 chromosomes, it comes from an animal that has __ chromosomes |
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Definition
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Term
| A heterozygous individual for one gene has |
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Definition
| Two different alleles of the same gene |
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Term
| In prophase I, each chromosome of eukaryotic cell consists of a pair of identical structures called: |
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Definition
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Term
| At which stage of meiosis is each chromosome composed of a sing chromatid |
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Definition
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Term
| In meiosis______ are produced |
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Definition
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Term
| Which of the following fetal tests provide the most info? |
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Definition
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Term
| Single sex-linked recessive alleles |
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Definition
| Can be masked by dominant alleles in females |
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Term
| In the snapdragon, alleles are incompletely dominant for color (R = Red, RR’= pink, R’R’ = white) If a pink-flowering plant was crossed with white plant, its offspring would be |
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Definition
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Term
| The haploid number of chromosomes among humans is |
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Definition
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Term
| The model of DNA we use today was first produced by: |
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Definition
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Term
| Type AB blood can be given to people with |
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Definition
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Term
| For a single gene, a homozygous individual has |
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Definition
| Either 2 of he same recessive alleles or 2 of the same dominant alleles |
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Term
| The first 22 pairs of human chromosomes are |
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Definition
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Term
| Crossing over among non-sister chromatids occurs in |
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Definition
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Term
| What is the importance of crossing over? |
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Definition
| It provides variation in the gametes produced |
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Term
| In the example f polygenic inheritance, which of the following would produce the darkest skin or tallest height |
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Definition
| AAbbCC – most capital letters |
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Term
| The particles the Mendel hypothesized were handed down to offspring from parents are now shown to be |
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Definition
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Term
| At which stage of meiosis do the sister chromatids separate from one another |
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Definition
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Term
| Which of the following can be given to a person with an O blood type |
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Definition
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Term
| Chargaff’s rule states that if an organism contains 20% cytosine in its DNA it will also contain |
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Definition
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Term
| A couple are both phenotypically normal but their son is colorblind which of the following genotypes would characterize the mother |
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Definition
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Term
| For two genes that are not sex-linked how many alleles would a single individual possess |
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Definition
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Term
| All of the offspring of a black rabbit and white rabbit are gray the simplest explanation for the result is |
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Definition
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Term
| In one of Mendel’s monohybrid crosses, which generation is made up of both heterozygous and homozygous individuals |
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Definition
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Term
| The end result of meiosis is |
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Definition
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Term
| Transformation of bacteria was shown to occur when __ strain bacteria were injected into mice and mice__ |
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Definition
| Live, rough, and heat killed smooth: died |
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Term
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Definition
| The set of synapse homologous chromosomes |
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Term
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Definition
| Discovered a transforming principle |
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Term
| Crossing over occurs between |
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Definition
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Term
| Cells containing a haploid chromosomes number |
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Definition
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Term
| Which of the following is a major source of variation in gametes? |
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Definition
| How chromosomes line up at metaphase I |
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Term
| The reduction division (from diploid and haploid) occurs during: |
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Definition
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Term
| In four o’clock plants, flower color is incompletely dominant. Which of the following crosses would produce all three possible phenotypes |
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Definition
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Term
| In an individual with dominant phenotype is crossed with an individual with recessive phenotype, 5 of their nine children show the recessive phenotype. What is the genotype of the first parent? |
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Definition
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Term
| A man who has type A blood and a woman with type B blood have one child with type O blood. They have the possibility of producing more children with which of the following phenotypes? |
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Definition
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Term
| When two different alleles for the same gene are both expressed in an individual this is known as |
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Definition
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Term
| Which of the following is NOT TRUE about sex (X) –linked characteristics? |
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Definition
a. More males than females are affected
b. If a female has the characteristic all of her sons will show it
c. Males can have one copy of the allele, but females can have two
d. Males can be carriers of the alleles without expressing them |
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Term
| In which of these phases would we find crossing over |
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Definition
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Term
| Edward was found to be homozygous (ii) for blood type O. Each of the alleles represented y the letter i are: |
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Definition
| On homologous chromosomes |
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Term
| When two people heterozygous for Sickle-cell Anemia have children, their changes of one of their children dying from the condition is |
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Definition
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