BIO 111 exam 4 UPDATED ACTUAL Questions And Correct Answers
Terms in this set (48)
In eukaryotic cells, the chromosomes are composed of DNA and Proteins
____.
What is the final result of mitosis in a human? Genetically identical 2n somatic cells
If there are 20 duplicated chromosomes in a cell, how 20
many centromeres are there?
The first gap in the cell cycle (G1) corresponds to ____. Normal growth and cell division
In human and many other eukaryotic species cells, the The attachment of microtubules to the kinetochores
nuclear membrane has to disappear to permit _.
Metaphase is characterized by ______. Aligning of chromosomes on the equator
During which phase of mitosis do the chromatids become Anaphase
chromosomes?
A cleavage furrow is _______. A groove in the plasma membrane between daughter nuclei
Proto-oncogenes _______. Stimulate normal cell growth and division
Tumor-suppressor genes _____. Encode proteins that help prevent uncontrolled cell growth
Which of the following defines a genome? The complete set of an organism's genes and other DNA sequences
Asexual reproduction occurs during _____. Mitosis
At which stage of mitosis are chromosomes usually Metaphase
photographed in the preparation of a karyotype?
Which of the following is a true statement about sexual In sexual reproduction, individuals transmit half of their nuclear genes to each of
vs. asexual reproduction? their offspring
A given organism has 46 chromosomes in its karyotype. Have gametes with 23 chromosomes
Therefore, we can conclude that it must _.
Which of the following might result in a human zygote An error in either egg or sperm meitotic anaphase
with 45 chromosomes?
Homologous chromosomes _______. Carry information for the same traits
Terms in this set (48)
In eukaryotic cells, the chromosomes are composed of DNA and Proteins
____.
What is the final result of mitosis in a human? Genetically identical 2n somatic cells
If there are 20 duplicated chromosomes in a cell, how 20
many centromeres are there?
The first gap in the cell cycle (G1) corresponds to ____. Normal growth and cell division
In human and many other eukaryotic species cells, the The attachment of microtubules to the kinetochores
nuclear membrane has to disappear to permit _.
Metaphase is characterized by ______. Aligning of chromosomes on the equator
During which phase of mitosis do the chromatids become Anaphase
chromosomes?
A cleavage furrow is _______. A groove in the plasma membrane between daughter nuclei
Proto-oncogenes _______. Stimulate normal cell growth and division
Tumor-suppressor genes _____. Encode proteins that help prevent uncontrolled cell growth
Which of the following defines a genome? The complete set of an organism's genes and other DNA sequences
Asexual reproduction occurs during _____. Mitosis
At which stage of mitosis are chromosomes usually Metaphase
photographed in the preparation of a karyotype?
Which of the following is a true statement about sexual In sexual reproduction, individuals transmit half of their nuclear genes to each of
vs. asexual reproduction? their offspring
A given organism has 46 chromosomes in its karyotype. Have gametes with 23 chromosomes
Therefore, we can conclude that it must _.
Which of the following might result in a human zygote An error in either egg or sperm meitotic anaphase
with 45 chromosomes?
Homologous chromosomes _______. Carry information for the same traits
