BIOL 2081C Study Guide - Quiz Guide: Meiosis, Dihybrid Cross, Metaphase

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blushwater-buffalo26

5 Mar 2015

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Department

Biological Sciences

Course

BIOL 2081C

Professor

Beyette

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Document Summary

If this cell comes from an animal with four pairs of chromosome. In general, only one or two different alleles may exist for a given gene: true, false, a true breeding blue flower is crossed with a true breeding orange flower. Some of the resulting offspring have orange flowers (dominant) and some have blue flowers (recessive). This was most likely a: test cross, monohybrid cross. Genetics exam #1 4: dihybrid cross, trihybrid cross, what is the genotype in the boldface square with a question mark, wwgg, wwgg, wwgg, wwgg, the shapes are round (w-) or wrinkled (ww). The colors are yellow (g-) or green (gg). How many phenotypic classes are expected: 2, 3. Genetics exam #1 6: 4, 6, 5 f. 2: matings between black rats of identical genotype produced offspring as follows: 14 cream-colored, 47 black, and. When dihybrid plants were interpollinated, 6% of the progeny were found to possess ovoid-shaped seed capsules.

Related Questions

What is the purpose of meiosis?

To enable an organism to produce gametes

To allow for growth

To allow an organism to replace damaged cells

Question 2

Select one answer.

10 points

Mitosis results in ________ and meiosis results in ________.

gametes, somatic cells

gametes, gametes

somatic cells, somatic cells

somatic cells, gametes

Question 3

Select one answer.

10 points

Which of the following tasks is accomplished through the processof meiosis?

Cell growth

Production of sperm or eggs

Replacement of dysfunctional cells

Question 4

Select one answer.

10 points

What advantage does sexual reproduction have over asexualreproduction?

All other selections are true.

Sexual reproduction provides more genetic variability

Sexual reproduction doubles the number of chromosomes in aspecies

Sexual reproduction is more efficient

Question 5

Select one answer.

10 points

Crossing over occurs between homologous chromosomes during whatstage of cell division? (Read each option carefully.)

Prophase I of meiosis

Prophase of mitosis

Prophase II of meiosis

Interphase

Question 6

Select one answer.

10 points

Corn has 20 chromosomes. When corn undergoes meiosis how manychromosomes are found in the gametes?

Question 7

Select one answer.

10 points

Homologous chromosomes separate and are pulled to opposite sidesof the cell during what stage of cell division? (Read each optioncarefully.)

Metaphase I of meiosis

Anaphase II of meiosis

Anaphase I of meiosis

Anaphase of mitosis

Question 8

Select one answer.

10 points

Mitosis results in ______ cells and meiosis results in _______cells.

diploid, haploid

haploid, diploid

diploid, diploid

haploid, haploid

jadepug655

Meerkats are a diploid organisms with n=18.

For each of the following, indicate the total number of chromosomes, the number of pairs of homologous chromosomes and the number of pairs of sister chromatids. Indicate if the cell in question is diploid or haploid and if the daughter cell will be diploid or haploid.

A. A non-dividing skin cell

Total number of chromosomes:

Number of pairs of homologous chromosomes:

Number of pairs of sister chromatids:

Diploid or haploid?

B. A cell is prophase of meiosis I:

Total number of chromosomes:

Number of pairs of homologous chromosomes:

Number of pairs of sister chromatids:

Diploid or haploid?

Daughter cell diploid or haploid?

C. Cell in metaphase meiosis II:

Total number of chromosomes:

Number of pairs of homologous chromosomes:

Number of pairs of sister chromatids:

Diploid or haploid?

Daughter cell diploid or haploid?

D. A mature sperm cell:

Total number of chromosomes:

Number of pairs of homologous chromosomes:

Number of pairs of sister chromatids:

Diploid or haploid?

salmongerbil352

-Complete the following sentences: metaphase of mitosis, prophase II of meiosis, crossing over, anaphase I of meiosis, variable, random fertilization, identical, random orientation, metaphase I of meiosis, prophase I of meiosis, metaphase II of meiosis, reduction division

Two processes that occur during meiosis produce genetically ____________ cells.

In a process called ____________ , paired homologous chromosomes align randomly at the cell equator. This occurs during this stage of cell division: ____________ .

In a process called ____________ , genetic material is exchanged between homologous chromosomes. This occurs during this stage of cell division: ____________ .

-Complete the following paragraph to describe nondisjunction and the resulting effects on chromosome number.

words: euploidy, primary nondisjunction, nomal, nondisjunction, secondary nondisjunction, homologous chromosomes, abnormal, trisomy, monosomy, sister chromatids, aneuploid

1.During meiosis I, ____________ separate and move towards opposite ends of the poles.

2.During meiosis II, ____________ separate and move towards opposite ends of the poles.

3.During meiosis I, if both members of a homologous pair go into the same daughter cell, ____________ is said to occur and no normal gametes are produced.

4.During meiosis II, if the sister chromatids fail to separate and both daughter chromosomes go into the same gamete, ____________ is said to occur. Half the gametes are aneuploid while the other half are euploid.

5.If an egg that contains 24 chromosomes instead of 23 chromosomes is fertilized by a normal sperm, ____________ is said to have occurred.

6.If an egg that contains 22 chromosomes instead of 23 chromosomes is fertilized by a normal sperm, ____________ is said to have occurred.

BIOL 2081C Study Guide - Quiz Guide: Meiosis, Dihybrid Cross, Metaphase

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