New Review SSA Punnett Squares and Pedigree

What process does the spider plant use to transmit its DNA to the plantlets

• asexual reproduction, which requires meiosis

• asexual reproduction, which does not require meiosis

• sexual reproduction, which requires meiosis

• sexual reproduction, which does not require meiosis

What best describes the plantlet when compared to the plant it was attached to?

• It is genetically identical to the plant

• It shares half of its genes with the plant

• It is genetically different from the plant

• It shares none of its genes with the plant

Which of the following statements is best supported by the diagram of meiosis and mitosis?

• Mammals use DNA to pass genetic information from parents to offspring

• DNA is heritable, but chromosomes are not

• Only meiosis results in offspring that are identical to the parent cells

• Only mitosis results in offspring that are identical to the parent cells

Organisms use the processes of meiosis and mitosis to reproduce. What is a major difference between the two methods of cellular reproduction?

• DNA is only used in meiosis and not in mitosis

• Mammals use mitosis to reproduce and bacteria use meiosis to reproduce

• Mitosis is a process of sexual reproduction and meiosis is a process  of asexual reproduction

• Meiosis is a process of sexual reproduction and mitosis is a process  of asexual reproduction

In a certain type of plant the allele for purple flowers (P) is dominant, while the allele for pink flowers (p) is recessive. Plant 1 and Plant 2 are both heterozygous for the color of their flowers. Use the Punnett square to answer the question.

What are the colors of the flowers on the parent plants and what is the probability that the plants will produce pink offspring?

• The parents have pink and purple flowers. The probability their offspring will have pink flowers is 100%.

• The parents have purple flowers. The probability that their offspring will have pink flowers is 25%

• The parents have pink and purple flowers. The probability their offspring will have pink flowers is 50%

• The parents have pink flowers. The probability that their offspring will have pink flowers is 25%

Some people have an uncontrollable need to sneeze when they go out into bright sunlight. You might see these people sneezing when they walk out of a movie theater or a school on a sunny day. The condition is called ACHOO syndrome. ACHOO syndrome is a genetic condition and the ACHOO allele is dominant.

     

Look at the pedigree for the Kowalski family. Arek and Marietta both have ACHOO syndrome. They have four married children. Some of the children have ACHOO and others do not.

Use the information provided in the pedigree to determine which of the following genotypes is correct.

• Arek is heterozygous for ACHOO

• Hugo is homozygous for ACHOO

• Luiza is heterozygous for not having ACHOO

• Milan is homozygous for ACHOO

What is the probability that individual 11 will have offspring with white fur if they reproduce with a female with the genotype Gg?

• 0%

• 25%

• 50%

• 100%

What is the genotype and phenotype of individual 1?

• She has white fur and a genotype of gg

• She has white fur and a genotype of GG

• She has brown fur and a genotype of Gg

• She has brown fur and a genotype of Gg

For the phenotypes to be inherited, sexual reproduction must take place. How would the inheritance be different if asexual reproduction took place instead?

• New phenotypes would be introduced due to the speed at which reproduction is able to take place

• All of the existing genotypes would be converted into recessive ones to force the expression of the trait

• Each individual would produce offspring with the exact same genotypes and phenotypes as itself

• The genotypes and phenotypes for each generation would alternate between dominant and recessive

A female hammerhead shark was injured and taken to a marine rehabilitation facility. While she was in captivity, she reproduced asexually.

If an aquarium acquired the hammerhead shark at the top of the family tree shown in 1950, and the aquarium has only had descendants of that shark since, what would best describe the hammerhead shark indicated by the circle?

• It will have genes from both its parents

• It is genetically identical to the hammerhead from 1950

• It will share some of its traits with its siblings

• It is a male because all asexual offspring are male