Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Bio 1081 Prev Exam 3
| Question | Answer |
|---|---|
| Proteins consists of amino acids linked together by | Peptide Bonds |
| A graph that plots the rate at which CO2 is converted to glucose versus the wavelength of light illuminating a leaf is called | Action Spectrum |
| A pea plant with red flowers is test crossed, and one-half of the resulting progeny have red flowers, while the other half has white flowers. Therefore, the genotype of the test- crossed parent was | Heterozygous |
| The hydrogen bond between two water molecules arises because water is | Polar |
| The event in the cell division process that clearly involves microfilaments is | Cytokinesis in animal cells |
| Hemophilia is caused by a | recessive allele on the X chromosome |
| A mechanism for increasing the genetic diversity of offspring is | sexual reproduction |
| In some human populations, the proportion of individuals who are heterozygous for the sickle cell allele is much higher than would be expected by chance alone. Why? | Heterozygous individuals have an advantage over individuals with two normal alleles |
| Occasionally, chromosomes fail to separate during meiosis, leading to daughter cells that have an abnormal number of chromosomes. This phenomenon is called | nondisjunction |
| Which of the following occurs during the Calvin cycle? | CO2 is converted into sugars |
| The oxidizing agent at the end of the electron transport chain is | O2 |
| Genes located on mitochondrial DNA are usually inherited in what fashion? | from the mother |
| Sickle cell anemia is caused by a defect in the | oxygen carry pigment hemoglobin |
| Given what is known about the minimal essential functions of cellular life, if you could create an artificial cell, what cellular structures must you include? | ribosomes |
| Which of the following phases of the cell cycle is NOT part of interphase? | M |
| Which of the following statements about mitosis is true? | Two genetically identical daughter cells are formed |
| The function of NAD+ is to | carry hydrogen and free energy from compounds being oxidized and to give hydrogen atoms and free energy to compounds being reduced |
| Plants are green because | chlorophyll absorbs blue and orange-red wavelengths while reflecting green lights |
| The fixation of CO2 by PEP carboxylase functions to | allow plants to close stomata without the occurrence of photorespiration |
| During meiosis, the sister chromatids separate during | Anaphase II |
| A male fruit fly has the genotype PpYYrrTt. In terms of these 4 allele pairs, how many different types of gametes can he form? | 4 |
| If fertilization involves two gametes that contain different alleles of a given gene, the resulting offspring is | heterozygous |
| In humans, if an XY individual had a deletion of the SYR gene, that person would | develop as a female |
| In the ABO blood type system, | A and B are codominant |
| In pea plants, spherical seeds (S) are dominant to dented seeds (s). In a genetic cross of two plants that are heterozygous for the seed shape trait, what fraction of the offspring should have spherical seeds? | 3/4 |
| A haploid cell is a cell | that contains one copy of each chromosome |
| During photorespiration, rubisco uses _______ as a substrate. | O2 |
| Cyclin-dependent kinases (Cdk's) catalyze the phosphorylation of targeted proteins, a process that | changes shape and function of the targeted proteins |
| What is the relationship between recombination frequency and the actual physical distance on a chromosome? | as physical distance increases, the recombination frequency increases |
| Which of the following statements concerning rubisco is true? | rubisco is a carboxylase |
| How does mitotic prophase differ from prophase I of meiosis? | crossing over in prophase I does not occur in mitotic prophase |
| A nucleotide contains a pentose sugar, a phosphate group, and | a nitrogenous base |
| The only process that can bring glucose molecules into cells that does NOT involve the metabolic energy of ATP is | diffusion |
| Which of the following is NOT a characteristic of a prokaryotic cell? | a nuclear envelope |
| During mitotic anaphase, chromosomes migrate | towards the poles away from the equatorial plate |
| The molecules that make up a chromosome are _______ and _______. | DNA; proteins |
| An allele that is present but unexpressed is | recessive |
| The term that Darwin used to describe the concept that those with superior physical, behavior or other attributes are more likely to survive than those that are NOT so well endowed, and thus are more likely to pass their traits to the next generation, is | natural selection |
| Enzymes are biological catalysts and function by | lowering activation energy of a reaction |
| The site on the chromosome occupied by a gene is called a(n) | locus |
| When a photon is absorbed by chlorophyll, | the chlorophyll becomes "excited" or energized |
| How many Barr bodies does a normal human female contain in each diploid cell? | 1 |
| The products of noncyclic electron transport are | NADPH, O2, ATP |
| Chromatin condenses to form discrete, visible chromosomes | during prophase |
| Height is a trait that shows continuous variation in humans. In pea plants, on the other hand, the tall allele is dominant over the short allele and there are no intermediate heights. What is the best explanation for this difference? | height is a polygenic trait in humans |
Created by:
pendleem
Popular Biology sets