Genetics and Meiosis Worksheet Questions (Grade 10)

Meiosis is a process that​ (a)   chromosomes to the​ (b)   number, provides genetic ​ (c)   , and ensures the correct distribution of ​ (d)   into the ​ (e)   .

• reduces
• haploid
• variation
• chromosomes
• gametes
• increases
• diploid
• stability
• zygote

How many sperm cells are formed from an original cell in a Drosophila fruit fly at the conclusion of meiosis?

• two haploid sperm cells

• two diploid sperm cells

• four haploid sperm cells

• four diploid sperm cells

Tags

NGSS.HS-LS3-2

Choose the words to finish the sentences: A human cell that carries a double set of chromosomes is called a ​ (a)   cell. The cell contains 2n=46 number of chromosomes. One​ (b)   of each ​ (c)   is located on each ​ (d)   chromosome. In sexual reproduction, meiosis produces​ (e)   gametes with one of each kind of chromosome. In humans, these cells contains n=23 number of chromosomes.

• diploid
• allele
• gene
• homologous
• haploid
• monoploid
• chromatid
• genotype

Tags

NGSS.HS-LS3-1

Raul is using a computer model to investigate meiosis. He directs the model to show a nondisjunction of chromosome 21 during meiosis I. How many copies of chromosome 21 should the model display in each gamete that is produced?

• 1 copy

• 2 copies

• either 3 copies or 1 copy

• either 2 copies or no copies

• Tt

• TT

• tt

• TtTt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The Punnett square describes the potential offspring of a cross with parent gametes D and d (top) and D, D (left). What phenotypes will be shown by the offspring?

• All offspring will show the recessive phenotype for this trait.

• All offspring will show the dominant phenotype for this trait.

• Half of the offspring will show the dominant phenotype and half will show the recessive phenotype.

• Three fourths of the offspring will show the dominant phenotype and one fourth will show the recessive phenotype.

Tags

NGSS.HS-LS3-1

The Punnett square describes the potential offspring of a cross with parent gametes D and d (top) and D, D (left). What phenotypes will be shown by the offspring?

• All offspring will show the recessive phenotype for this trait.

• All offspring will show the dominant phenotype for this trait.

• Half of the offspring will show the dominant phenotype and half will show the recessive phenotype.

• Three fourths of the offspring will show the dominant phenotype and one fourth will show the recessive phenotype.

Tags

NGSS.HS-LS3-1

An arrangement of all the chromosomes of a diploid cell is called a(n)​ (a)   . For a human cell, this arrangement contains ​ (b)  

and ​ (c)  

.

• karyotype
• 22 pairs of autosomes
• one pair of sex chromosomes
• genotype
• 23 pairs of chromosomes
• two pairs of sex chromosomes

Tags

NGSS.HS-LS3-1

Myron constructed the pedigree shown below to study the inheritance of a specific trait in his family. A single gene that has two alleles determines whether the trait is expressed. In the pedigree, Myron’s parents are a circle and square in the top row; three sons are squares in the second row; the shaded square represents the son who expresses the trait. The pedigree provides the strongest evidence for which conclusion? What can be concluded about the trait?

• The trait is harmful and may be a genetic disorder.

• The allele for the trait is dominant.

• The allele for the trait is recessive.

• Only males may express the trait.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Steven develops a pedigree for earlobe attachment in a large family. Earlobes can be either free or attached. What information about earlobe attachment can Steven most likely determine by analyzing the pedigree?

• the type of mutation that caused the two forms of the trait

• the location of the gene for the trait on a chromosome

• the percentage of each form of the trait in the human population

• the dominant and recessive forms of the trait