BIO207H5 Study Guide - Final Guide: Actinin Alpha 2, Hypertrichosis, Haemophilia A

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7 Dec 2016

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More male should have the trait than female. All sons of effected mother should show the trait. Affected male will have all daughters as carries if mated with normal female. Heterozygous female with normal male will have half the children with dominant allele. Affected male mating with normal female results in all daughters having the trait. If both parents have the disorder, then all their children will have it. If it"s rare then person marrying is homozygous dom. If affected, then they have at least one affected parent. Male and female affected equally and either sex can pass it down. Termination occurs as crossing over ends and nuclear envelop breaks down and spindle fibers interact with tetrad. Metaphase i: homologous chromosomes align at the center (metaplate) Telophase i: nuclear envelope reform and 2 haploid cells created. Metaphase ii: sister chromatids align at the center of the cell. Anaphase ii: sister chromatids separate and move to opposite side of cell.

Related Questions

QUESTION 1

Jim is blood type A, his brother John is type O and his sister Jane is type AB. What are the genotypes of their parents?

Which of the following is true for alleles that show incomplete dominance?

Heterozygotes have a genotype like the dominant allele.

Homozygotes have a genotype like the recessive allele.

Heterozygotes have a phenotype intermediate between the dominant and recessive alleles.

Homozygotes have the same phenotype as the heterozygotes.

QUESTION 3

Which principle of inheritance concluded that when games are formed in meiosis, the two alleles of each gene separate from one another, and each gamete receives only one allele?

independent assortment

Which term best describes a condition in which alleles at one locus can alter the expression of alleles at another locus?

polygenic inheritance

A single unit of genetic information located on a chromosome defines:

The physical expression (appearance or function) of an organism's genes defines:

genotype

a single characteristic

Palomino horses (golden color with a blond mane) are an incompletely dominant trait produced by the combination of the chestnut color allele and the cream color allele. If you wanted to produce as many palominos as possible, which mating strategy below would be the best choice?

Which term best describes the effect of a single gene on multiple aspects of the phenotype?

polygenic inheritance

QUESTION 9

Which term best describes the separate expression of both alleles for a single trait in the same cell?

polygenic inheritance

QUESTION 10

One form of a gene found on a single chromosome defines:

A chocolate lab (whose mother was a yellow lab) is mated with a black lab whose genotype is BbEe. What fraction of the offspring would be expected to be yellow labs?

What type of allele is always expressed regardless of whether the individual is homozygous or heterozygous for it?

Both the dominant and recessive alleles

Given the parents AABBGgHhrr Ã AabbGgHhRr, assume simple dominance and independent assortment. What proportion of the progeny will be expected to have the genotype AaBbggHHrr?

___________________ is defined as having two of the same type of allele for a particular trait.

The physical position of an allele on a single chromosome defines:

Which term best describes two or more genes affecting the phenotype in an additive fashion?

codominance

polygenic inheritance

1. Unlike DNA, RNA contains

deoxyribose

a double strand

phosphates

uracil

Nucleic acid structure

2. In transcription, uracil will bond with:

thymine

cytosine

adenine

guanine

Transcription

3. The first team of scientist to document the structure of DNA was:

Franklin and Wilkins

Watson and Crick

Pauling and Chargoff

None of the above

DNA structure

4. Organelles that synthesize protein are:

lysosomes

ribosomes

endoplasmic reticulum

golgi bodies

5. Most of the time in a cell's life, it's DNA is in the form of:

Chromatin

Chromatids

Replicated chromosomes

Spindle fibers

6. Uracil is a nitrogen base that pairs with adenine. Using this information, one could conclude that uracil is a:

Purine

Pyrimidine

Neither a purine or pyrimidine

Not enough information

7. a nucleotide does not consist of a:

polymerase

5-carbon sugar

phosphate group

nitrogen base

8. The genetic code in DNA of an individual depends on the sequence (order) of:

nucleotides

purines only

phosphates

sugars

9. Before a cell divides, it must duplicate its DNA in a process known as:

translation

transformation

transcription

replication

10. The basic unit (building block) of a protein is a (an):

carbohydrate

amino acid

lipid

hydrogen bond

11. Unlike DNA, RNA contains:

deoxyribose

a double strand

phosphates

uracil

12. The structure of DNA was first documented in:

1945

1953

1956

1962

13. In DNA replication, the new molecules produced are:

of unequal length

both assembled in the same direction

built with purines as the backbone

assembled in opposite directions

DNA replication

14. The "backbone" of DNA is composed of:

ribose and phosphates

deoxyribose and phosphates

ribose and uracil

deoxyribose and thymine

DNA structure

15. RNA differs from DNA in which of the following ways?

RNA is single-stranded

RNA contains ribose

RNA does not contain thymine

All of the above

DNA structure

16. Which of the following is NOT required for the transcription process itself?

RNA polymerase

DNA

uracil-containing nucleotides

ribosomes

skyhamster121

Can someone please help me with the following questions. Pleaseprovide an answer/explanation especially for the first three.

?. Suppose a population of flour beetles has 1,000 individuals.Normally the beetles are red; however, this population ispolymorphic for a mutant autosomal body color, black, designated bybb. Red is dominant to black, so BB and Bb genotypes are red.Assume the population is at HardyâWeinberg equilibrium, with equalfrequencies of the two alleles. What would be the allelefrequencies if a population bottleneck occurred and only fourindividuals survived: one female red heterozygote and three blackmales? A) 0.125 red; 0.875 black B)0.875 red; 0.125 black C) 0.25 red;0.75 black D) 0.75 red; 0.25 black E) 0.5 red;0.5 black

?. What would be the expected frequencies of the red and blackphenotypes in the original population of beetles? A) 0.5 red; 0.5black B) 0.75 red; 0.25 black C) 0.25 red; 0.75black D) All red E) Insufficient information is given to answer thequestion.

?. Given the original population data and a Hardy-Weinbergequilibrium, what are the frequencies of the homozygous dominant,heterozygous, and homozygous recessive (in that order) after 100generations, assuming that no selection or other evolutionaryprocesses are operating? A) 0.25;0.5; 0.25 B) 0.75; 0.20; 0.05 C) 0; 0.5; 0.5 D.) 0; 0; 1 E) None ofthe above

?. The chart below shows the performance of different genotypesat the A locus for three different populations of lizards in twodifferent environments. The first number is their running speed (inm/s) and the second is their relative strength. In which populationis there evidence of a trade-off between running speed and relativestrength? A) Population 1 B) Population 2 C) Population 3 D) Both aand b E) None of the above

Population

1 (AA) 6.2/10 (Aa)7.6/12 (aa)8.2/15

2 (AA)5.1/18 (Aa)6.2/11 (aa)7.4/8

3 (AA)6.9/14 (Aa)6.5/11 (aa)4.7/9

?. The half-life of carbon-14 is 5,700 years. If 10 percent ofthe original carbon-14 is left in a structure, that structure is_______ years old. A ) less than2,850 B) about 5,700 C) between 11,400 and17,100 D) between 17,100 and 22,800 E)about 57,000

?. Which is the best way to estimate the length of time that twospecies have been separated evolutionarily? A) compare pieces ofDNA coding for a structural protein that is present in both speciesB) studying the many nucleotide sites in both species and taking anaverage differences between DNA and RNA C) comparing pieces of DNAfor a functional enzyme that is present in both species D)comparing the DNA differences between two species in non-codingregions E) Comparing fitness levels

?. Incomplete dominance could be considered as supportingevidence for A) Fleming Jenkins blending hypothesis argument B)Alfred Wallaceâs theory of Biogeography C) Darwinâs theory ofNatural Selection D) Cuvierâs catastrophe hypothesis E) None of theabove.

?. Penicllium is a mold that grows on bread. It producespenicillin, a toxin which destroys or inhibits bacteria and otherfungi from growing on the bread. This is best labelled A)commensalism B) amensalism C) neutralism D) obligate mutualism C)contest competition

periwinklesquirrel174

BIO207H5 Study Guide - Final Guide: Actinin Alpha 2, Hypertrichosis, Haemophilia A

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