Biology 1001A Lecture Notes - Lecture 4: Dna Replication, Macrophage, Dna Polymerase

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jadebeaver77

15 May 2012

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Questions: chapter 9 1, 3, 4, 5, 6, 7, 10. Dna double helical structure one things in biology that ensures that daughter cells are the same as the parent cells; it ensures the stability of the genetic material (double. Replication process of dna - same genome is transferred into daughter cells due to because of the method of dna replication. Check points ensure that cells fix their dna and are ready to divide and that they are ready to divide and therefore their daughter cells get the proper number of properly copied chromosomes. New strands grow onto adding on to 3" end. Bottom strand is being replicated continuously- meaning that the bottom right strand is leading but on the left it is top strand that is leading. One strand is leading all the time doesn"t happen. Leading strand is the strand that is being replicated continuously at any given fork depends of the fork.

Related Questions

The semiconservative model for DNA replication is characterized by

A. Two parental strands separate and serve as a template

B. "New made, complimentary DNA strands are formed in each daughter cell."

C. After two rounds of replication, all daughter cells will have some DNA components from the original parent cell.

D. A & B

E. A, B, & C

cyancaribou137

The semiconservative model for DNA replication is characterized by

A. Two parental strands separate and serve as a template

B. "New made, complimentary DNA strands are formed in each daughter cell."

C. After two rounds of replication, all daughter cells will have some DNA components from the original parent cell.

D. A & B

E. A, B, & C

harlequincicada314

M2A1 Worksheet: Mitosis and Meiosis

A dog is a diploid organisms and has 39 pairs of chromosomes (2n = 78), where n = 39 chromosomes from each parent. Use this example to answer the following question regarding chromosomal number.

INTERPHASE

How many chromosomes are present in the somatic cell?

What do they look like?

What are they âdoingâ in G1 of this phase?

What is happening in the S phase?

What is happening in the G2 phase?

What follows G2 phase in a somatic cell?

What follows G2 phase in a gamete cell?

MITOSIS

Number of chromosomes in the parent cell.

Number of chromatids in the parent cell.

Number of chromosomes in the daughter cell.

Number of chromatids in the daughter cell.

How many daughter cells are produced?

Are the daughter cells haploid or diploid?

How many cell divisions take place?

In what type of cell does this division occur?

Meiosis 1:

Number of chromosomes in the parent cell.

Number of chromatids in the parent cell.

Number of chromosomes in each Meiosis I daughter cell.

Number of chromatids in each Meiosis I daughter cell.

Are the daughter cells haploid or diploid at the end of Meiosis 1?

Meiosis II:

Number of chromosomes in the âparentâ cell (which is a daughter cell from Meiosis I).

Number of chromatids in the âparentâ cell.

Number of chromosomes in each Meiosis II daughter cell.

Number of chromatids in each Meiosis II daughter cell.

Are the daughter cells haploid or diploid at the end of Meiosis II?

Which phase or phases of Meiosis account for the genetic variability among the daughter cells? Howâ¦ what happens in this phase to create the diversity?

Comparing Mitosis and Meiosisâ¦..

How many daughter cells result from Mitosis? Are they diploid or haploid?

How many daughter cells result from Meiosis? Are they diploid or Haploid?

Cell structures and function: Match each organelle to its function:

Organelle Function

Lysosome 1. Lipid synthesis

Rough ER 2. Houses DNA

Nucleus 3. Energy extraction

Smooth ER 4. Dismantles debris

Golgi apparatus 5. detoxification

Mitochondria 6. Protein synthesis

Peroxisome 7. Processes secretions

What is the function of checkpoint proteins in the cell cycle?

How can all of a personâs cells contain exactly the same genetic material, yet specialize as bone cells, nerve cells, muscle cells and connective tissues?

What are the 3 primary germ layers?

Briefly, in one or two sentences, distinguish between

a bacterial cell and a eukaryotic cell

interphase and mitosis

mitosis and apoptosis

an autosome and a sex chromosome

homologous pair of chromosomes and a sister chromatid

centromere and centriole

chromosome and chromatid

monozygotic and dizygotic twins

allele and gene

Biology 1001A Lecture Notes - Lecture 4: Dna Replication, Macrophage, Dna Polymerase

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