post lab
ploidy when a cell has two full copies of all chromosomes
Diploid
Telophase 11
Four haploid daughter cells form
How are Meiosis I and Meiosis II different?
Genetic recombination (crossing over) only occurs in Meiosis I. In Meiosis I, homologous chromosomes separate, while in Meiosis II, sister chromatids separate; Meiosis II produces 4 daughter cells, whereas Meiosis I produces 2 daughter cells
Which skull shows a much larger brain case than the other two?
Homo sapiens
Which skull shows much less of an overbite (protruded jaw) than the other two?
Homo sapiens
How will increasing the temperature affect the reaction rate?
The reaction will progress faster (increased reaction rate).
How will decreasing the concentration of enzymes affect the rate of the reaction?
The reaction will progress slower (decreased reaction rate)
Based on these results:Sucrose produced 132mm of gas bubblesGlucose produced 102mm of gas bubblesFructose produced 52mm of gas bubblesDistilled water produced 0 mm of gas bubbles Do you think that the yeast species added to today's experiment have the enzyme necessary to break the disaccharide sucrose into the monosaccharides glucose and fructose?
Yes, because the sucrose tube produced more bubbles than the glucose tube
Identify the phase of the cell cycle
anaphase
What is This
anaphase 1
Most enzymes usually end with which three letters as a suffix?
ase
Which product of fermentation was measured in today's virtual lab experiment?
carbon dioxide
Cytokinesis
cytoplasm divides-resulting in two distinct daughter cells
intterphase
dense nucleus with no visible chromosome
Based on your knowledge of the scientific method and experimental design, which tube would be an example of the negative control for this experiment?
distilled water + yeast
daughter cells of Meiosis II
four cells - each with one copy of each chromosome
p
frequency of dominant allele
2pq
frequency of heterozygous genotype
p2
frequency of homozygous dominant
q
frequency of recessive allele
Both cellular respiration and fermentation ordinarily begin with what molecule?
glucose
Based on your knowledge of the scientific method and experimental design, which tube would be an example of a positive control for this experiment?
glucose + yeast
Which skull shows a very tall crest in the center on top of the head, indicating large jaw muscles for feeding AND much larger canines than the other two?
gorilla
which species is least similar to, and therefore LESS RELATED to the other two?
gorilla
ploidy when a cell has only one copy of each chromosome
haploid
q2
homozygous recessive
Which bonds are broken in order to separate the DNA strands?
hydrogen bonds between base pairs are broken.
What is this?
interkinesis
which is this
interphase
Identify the phase of the cell cycle.
metaphase
Which piece of lab equipment is used to transfer small, precise volumes?
micropipette
Does crossing over during Prophase I create more or less genetic variation in the gametes? (type one word: more or less)
more
Which is NOT a requirement for Hardy-Weinberg equilibrium to be true?
mutations occur.
Which two molecules make up the backbone of a DNA molecule?
phosphate and deoxyribose
what is this
prophase
What is this?
prophase 1
In cardinal birds, the brown female bird protects the nest and chooses her mate based on his bright red coloration. If a male cardinal is sick, he may not have the proper nutrients for producing vibrant red feathers and may not get selected for mating. This is an example of
sexual selection
anaphase 11
sister chromatids separate
what is this
telophase 1s
If you combine an enzyme with a substance that is not a substrate for the enzyme,
the substance will not bind to the enzyme and the enzyme will not catalyze a reaction.
How does mRNA exit the nucleus?
through nuclear pores
What is the main purpose of DNA replication?
to produce a copy of DNA during the S phase of Interphase so that daughter cells will be genetically identical
daughter cells of Meiosis I
two cells - each pair with sister chromatids
When replication is complete, are the two molecules of DNA identical?
yes
Is transcription of mRNA from DNA the formation of an exact copy?
No. Although it carries the same information as the DNA template, it is not an exact copy but is complementary to the DNA.
The pH of your blood is 7.4 normally. Carbonic anhydrase is an enzyme that functions in your blood to help your body maintain homeostasis. Predict which pH would have the most carbonic anhydrase activity (or product made) if you were to test its activity in different pH solutions.
PH =7
Which of the following is/are true about enzymes?
All of the choices are correct.
How many successive nucleotides in a gene are needed to code for one amino acid in a polypeptide?
3
prophase 11
A new spindle forms around the chromosomes
metaphase 11
Chromosomes line up at the equator.
