Homework Answers
(QUESTION) Alleles are
(ANSWER) (alternate versions of the same trait)
(EXPLANATION) The contrasting or dissimilar versions of a trait are called as Alleles. Hence, this option is correct.
(EXPLANATION FOR INCORRECT ANSWER) (recessive trait) Recessive traits are those whose phenotypic expression requires the presence of both the alleles encoding it. Hence, this option is incorrect.
(EXPLANATION FOR INCORRECT ANSWER) (exact copies of the same trait) Alleles are contrasting versions of a gene. Hence, this option is incorrect.
(EXPLANATION FOR INCORRECT ANSWER) (two versions of the same trait) a trait may have more than two versions. Alleles are the diverging versions of a gene. Hence, this option is incorrect.
(EXPLANATION FOR INCORRECT ANSWER) (dominant trait) Dominant traits those phenotypic expression is evident even in the presence of a single allele. Hence, this option is incorrect.
(QUESTION) (which of the following is not true regarding mitosis and meiosis)
(ANSWER) (BOTH REQUIRES TWO NUCLEAR DIVISIONS)
(EXPLANATION) Mitosis involves a single round of nuclear division and cytoplasmic division. But meiosis involves two rounds of nuclear division and cytoplasmic division. Hence, this option is correct.
(ANSWER) (MITOSIS OCCURS IN ALL TISSUES)
(EXPLANATION) Mitosis occurs in all cells of the body except for the germ cells. Hence, this option is correct.
(EXPLANATION FOR INCORRECT ANSWER) (meiosis results in four daughter cells) Meiosis is a type of cell division in which a single parent cell gives rise to four daughter cells. Hence, this option is incorrect.
(EXPLANATION FOR INCORRECT ANSWER) (the products of meiosis are genetically dissimilar to each other) The four daughter cells generated from a single parent cell are genetically dissimilar to each other. This is due to the recombination taking place between non-sister chromatids of homologous chromosomes. Hence, this option is incorrect.
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Alleles are Multiple Choice recessive traits. exact copies of the same trait. O two versions of...
Question 5 2 pts Alleles are exact copies of the same trait. dominant traits. recessive traits....
Question 5 2 pts Alleles are exact copies of the same trait. dominant traits. recessive traits. alternate versions of the same trait. 2 versions of the same trait.
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10....
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10. During meiosis, the chromosome number: a) is doubled b) is reduced c) remains the same d) becomes diploid 11. Meiosis produces haploid (#) reproductive cells called _ 12. Name the 2 human gametes & tell their chromosome number. 13. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 14. How many times do cells divide during meiosis? 15. What...
The following figure shows a cell containing a pair of homologous chromosomes. The alleles for the...
The following figure shows a cell containing a pair of
homologous chromosomes. The alleles for the F gene are indicated on
each chromosome. Which of the following most accurately represents
the configuration of chromosomes within the cell following DNA
replication, prior to meiosis?
Select one:
a.
b.
c.
d.
Which term is used to describe a pair of similar chromosomes in
a cell:
Select one:
a. bifurcates
b. homologous
c. chromatids
d. replicants
Which of the following statements is TRUE...
Multiple answer: select all that apply. Which of the following charecteristics of cell division are specific...
Multiple answer: select all that apply. Which of the following charecteristics of cell division are specific to MEIOSIS? [mark all correct answers] a. Chromosomes condense and are visible. b. Sister chromatids line up at the metaphase plate C. Homologous pairs (or tetrads) line up at the metaphase plate. d. Homologous chromosomes form tetrads and where the two homologs touch, synapsis occurs. e. Sister chromatids are pulled to opposite ends of the cell. f. Homolgous pairs of chromosomes are pulled to...
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and...
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
9-6 M. A. Merritt, 2016 1511 Lab Exercise #9 PROCEDURE 2: Simulation of the stages of...
9-6 M. A. Merritt, 2016 1511 Lab Exercise #9 PROCEDURE 2: Simulation of the stages of Meiosis 1) To simulate synapsis, take the two homologous pairs of lona chromosomos and place one on top of the other. Do the same with the #2, medium length chromosomes and then the # 3 , short chromosomes., Fill in the sketch for PROPHASE 1 below, illustrating synapsis. Even though crossing over occurs in nature, DO NOT add CROSSING OVER to your sketch. After...
multiple choice questions: 1- What fraction of the progeny will show a recessive phenotype for just...
multiple choice questions: 1- What fraction of the progeny will show a recessive phenotype for just one gene in a cross between AaBbCc x AaBbCc? A. 7/16 B. 9/64 C. ¼ D. 27/64 E. 26/64 2- Siblings share what percentage of their alleles? A. ½ B. ¼ C. 1/8 D. 1/10 E. 1/16 3- In a heterozygote, one allele conceals the presence of another. This is Mendel's: A. principle of segregation. B. principle of independent assortment. C. principle of dominance....
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
(cach question: 1 point) 1) If you see a red leaf, what color(s) of light in...
(cach question: 1 point) 1) If you see a red leaf, what color(s) of light in the visible light spectrum is/are being reflected? A) red B) all colors except red C) all colors D) no colors Answer: 2) permit CO2 to enter the leaf and O2 to escape. A) Mesophyll cells B) Thylakoids C) Stomata D) Chloroplasts Answer: 3) Chlorophyll is found in which part of the plant cell? A) stroma B) cytoplasm C) thylakoid D) plasma membrane Answer: 4)...
Can anyone help me with this? Thank you. Lab 13. Mitosis and Meiosis Purpose The purpose...
Can anyone help me with this? Thank you.
Lab 13. Mitosis and Meiosis Purpose The purpose of this lab is to understand the process of mitosis and melosis in animal and plant cells. Learning Objectives After completing this lab, you will be able to: 1. Describe the stages of mitosis. 2. Identify the stages of mitosis in an onion root or whitefish blastula using a light microscope. 3. Describe how cytokinesis differs in plant vs. animal cells. 4. Name and...
Question 5 2 pts Alleles are exact copies of the same trait. dominant traits. recessive traits. alternate versions of the same trait. 2 versions of the same trait.
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10. During meiosis, the chromosome number: a) is doubled b) is reduced c) remains the same d) becomes diploid 11. Meiosis produces haploid (#) reproductive cells called _ 12. Name the 2 human gametes & tell their chromosome number. 13. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 14. How many times do cells divide during meiosis? 15. What...
The following figure shows a cell containing a pair of
homologous chromosomes. The alleles for the F gene are indicated on
each chromosome. Which of the following most accurately represents
the configuration of chromosomes within the cell following DNA
replication, prior to meiosis?
Select one:
a.
b.
c.
d.
Which term is used to describe a pair of similar chromosomes in
a cell:
Select one:
a. bifurcates
b. homologous
c. chromatids
d. replicants
Which of the following statements is TRUE...
Multiple answer: select all that apply. Which of the following charecteristics of cell division are specific to MEIOSIS? [mark all correct answers] a. Chromosomes condense and are visible. b. Sister chromatids line up at the metaphase plate C. Homologous pairs (or tetrads) line up at the metaphase plate. d. Homologous chromosomes form tetrads and where the two homologs touch, synapsis occurs. e. Sister chromatids are pulled to opposite ends of the cell. f. Homolgous pairs of chromosomes are pulled to...
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
9-6 M. A. Merritt, 2016 1511 Lab Exercise #9 PROCEDURE 2: Simulation of the stages of Meiosis 1) To simulate synapsis, take the two homologous pairs of lona chromosomos and place one on top of the other. Do the same with the #2, medium length chromosomes and then the # 3 , short chromosomes., Fill in the sketch for PROPHASE 1 below, illustrating synapsis. Even though crossing over occurs in nature, DO NOT add CROSSING OVER to your sketch. After...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
(cach question: 1 point) 1) If you see a red leaf, what color(s) of light in the visible light spectrum is/are being reflected? A) red B) all colors except red C) all colors D) no colors Answer: 2) permit CO2 to enter the leaf and O2 to escape. A) Mesophyll cells B) Thylakoids C) Stomata D) Chloroplasts Answer: 3) Chlorophyll is found in which part of the plant cell? A) stroma B) cytoplasm C) thylakoid D) plasma membrane Answer: 4)...
Can anyone help me with this? Thank you.
Lab 13. Mitosis and Meiosis Purpose The purpose of this lab is to understand the process of mitosis and melosis in animal and plant cells. Learning Objectives After completing this lab, you will be able to: 1. Describe the stages of mitosis. 2. Identify the stages of mitosis in an onion root or whitefish blastula using a light microscope. 3. Describe how cytokinesis differs in plant vs. animal cells. 4. Name and...
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