Biology 1001A Lecture Notes - Lecture 10: Base Pair, Reciprocal Cross, Reciprocal (Grammar)

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beigecrab253

17 Dec 2017

School

Western University

Department

Biology

Course

Biology 1001A

Professor

Beth Mac Dougall Shackleton Tom Haffie

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Document Summary

Alleles: different version means different sequences of same gene. Different sequence= variation snps, cnvs, mobile elements moving around can all give rise to different alleles (above is different by snps, one snp different base pair) Mature plant sporophyte would go through meiosis to make spores to gametophytes and make gametes in these proportions, random fertilization gives this mendelian ratio. Monohybrid cross: 2 heterozygotes cross (each parent is heterozygote) , big p is purple, little p is white cell going through meiosis heterozygote plant, where"s little p? and carry it through meiosis how alleles ride on chromosomes through meiosis. Sex determining gene in mammals is carried on the y. The genes for making girls are everywhere, on x chromosome"s, on autosomes , answer= a. Genes for making sex specific structures are found everywhere expect mitochondria. The y chromosome carries gene if you are gunna be a boy or girl in mammals.

Related Questions

When a parent who is heterozgyous for a trait is crossed with a parent who is heterozygous for a trait, the offspring will:

(remember homozygous means two of the same alleles and heterozygous means two different alleles)

Select one:

a. have 3 out of 4 the dominant phenotype and 1 out of 4 the recessive phenotype

b. have 2 out of 4 the dominant phenotype and 2 out of 4 the recessive phenotype

c. all have the dominant phenotype

d. have 1 out of 4 the dominant phenotype

When a parent who is heterozgyous for a trait is crossed with a parent who is homozygous dominant for a trait, the offspring will:

(remember homozygous means two of the same alleles and heterozygous means two different alleles)

Select one:

a. all have the recessive phenotype

b. all will have the dominant allele

c. all be homozygous dominant genotype

When a parent who is heterozgyous for a trait is crossed with a parent who is heterozygous for a trait, the offspring will:

(remember homozygous means two of the same alleles and heterozygous means two different alleles)

Select one:

a. have 3 dominant phenotypes, 2 heterozygous genotypes, and 1 homozygous recessive genotype

b. have 1 dominant phenotype, 2 heterozygous genotypes, and 1 homozygous recessive phenotype

c. have all dominant phenotypes, 2 heterozygous genotypes, and 1 homozygous recessive genotype

When doing Punnett squares for fur, the letter f represents ______ and the letter F represents _____.

Select one:

a. the recessive allele, the dominant allele

b. the dominant allele, the recessive allele

c. the dominant gene, the recessive gene

d. the recessive gene, the dominant gene

10.

When a parent who is heterozgyous for a trait is crossed with a parent who is homozygous recessive for a trait, the offspring will:

(remember homozygous means two of the same alleles and heterozygous means two different alleles)

Select one:

a. be half heterozygous and half homozygous recessive

b. be all heterozygous

c. be all homozygous recessive

d. be all homozygous dominant

10. A mutated form of a proto-oncogene is called:

a) a tumor-inducing gene.

b) a tumor-suppressor gene.

c) an oncogene.

d) an apoptosis gene.

e) an accelerator gene.

7. True/false: A mutation in a single allele of a tumor-suppressor gene is sufficient for a cell to become cancerous. a) true b) false

8. Which of the following would most likely lead to nonhereditary cancer?

a) a single mutation in an egg cell

b) mitosis in a skin cell damaged by UV exposure

c) three mutations in an egg cell

d) apoptosis in a cell damaged by smoking

e) inheriting one mutation from each parent

. Two copies of a gene have identical regulatory sequences, but different coding sequences. These copies can be referred to as _____________.

a) alleles

b) highly similar

c) substitutes

d) low risk

e) high risk

amethystferret39

QUESTION 5

The RNA component and not the proteins, of the RNA splicing machinery is responsible for splicing mRNA.

True

False

10 points

QUESTION 6

Which of the following is FALSE regarding Alternative Splicing? (Choose ALL that apply)

	A.	Alternative splicing occurs at extremely high levels in nervous tissue.
	B.	Alternative splicing alternates involves the inclusion of different exons within a given gene.
	C.	Alternative splicing involves the inclusion of different introns within a given gene.
	D.	Alternative splicing allow for multiple mRNA transcripts to be expressed from one gene

10 points

QUESTION 7

Which of the following is FALSE regarding Dissociator? (Choose the one correct answer.)

	A.	Movement of Dissociator only occurs during early development.
	B.	It is a transposable genetic element.
	C.	It 's presence within a color gene disrupts pigment production.
	D.	It's movement is controlled by a second element called 'Activator'.

10 points

QUESTION 8

An antigen can be a protein, nucleic acid, or a polysaccharide.

True

False

10 points

QUESTION 9

Which of the following statements is TRUE regarding the cell cycle? Choose ALL that APPLY.

	A.	CDKs are downregulated by cyclins.
	B.	Mature, differentiated cells exit the cell cycle into a resting phase called G0.
	C.	DNA damage that occurs after the Restriction Point will not arrest the cell cycle since the cell has passed the 'point of no return'.
	D.	CDKs are activated by CKIs

10 points

QUESTION 10

Homeotic genes display spacial colinearity.

True

False

Biology 1001A Lecture Notes - Lecture 10: Base Pair, Reciprocal Cross, Reciprocal (Grammar)

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