Genetics and Heredity

Kara has several plants that produce either purple or whits flowers. She crosses a plant that has two recessive alleles for white flowers with a plant that has two dominant alleles for purple flowers. Which result would be true of the offspring? (hint make a punnett square)

• All of the offspring would have two recessive alleles and white flowers

• All of the offspring would have two dominant alleles and purple flowers

• All of the offspring would have one recessive allele, one dominant allele, and white flowers

• All of the offspring would have one recessive allele, one dominant allele, and purple flowers

In Mendel's experiments with pea plants, the pea plants had green or yellow pods and inflated or wrinkled pods. The figure shows the result of crossing two pea plants with different pod colors and different pod shapes. Which two traits are recessive? 

• Green pod color and inflated pod shape
• Green pod color and wrinkled shape
• Yellow pod color and inflated pod shape
• Yellow pod color and wrinkled pod shape

If an organism is produced by sexual reproduction, which of these statements is true of its chromosomes? 

• It receives all of its chromosomes from its female parent
• It receives half of its chromosomes from each of its parents
• It receives most of its chromosomes from its female parent 
• It receives all of its chromosomes from either its male or its female parent 

Which of these choices is the definition of allele?

• The form of a gene that is expressed
• One of many different forms of a gene 
• The combination of genes for a specific trait
• The complete genetic makeup of a living thing

Carrie is studying the genes of two fruit flies in her lab. She knows what alleles they have. She wants to know the potential combinations of alleles their offspring could inherit.  Which of these choices would help Carrie identify the potential combinations?

• An allele
• A carrier 
• A pedigree 
• A Punnett square

Which of these choices best describes what the shaded box represents?

• Homozygous Dominant 
• Homozygous Recessive
• Heterozygous
• Incomplete Dominance 

Which of these statements is true of sexual and asexual reproduction?

• Both types of reproduction require two parents 
• Both types of reproduction result in offspring that are identical to one parent 
• Both types of reproduction enable genetic information to be passed from parent to offspring 
• All organisms can reproduce sexually or asexually depending on environmental conditions 

Tags

NGSS.MS-LS3-2

During class, Julia takes notes about what happens to genetic material during cell division. After class she draws an illustration to accompany her notes. Her illustration is similar to the one shown. What label should Julia use at position Z in the diagram? 

• Chromatin
• Chromosome 
• DNA 
• Protein

Tags

NGSS.HS-LS1-4

Which of these statements is correct according to the Punnett Square?

• Each offspring has a 25% chance of inheriting the alleles PP
• Each offspring has a 25% chance of inheriting the allees  Pp
• Each offspring has an equal chance of inheriting the alleles PP or Pp
• Each offspring is more likely to inherit pp than any other combinations of alleles

Tags

NGSS.HS-LS3-3

Alisha and Rob would like to have children. A genetic counselor tells them that they are both carriers of a certain genetic disease. What does this mean?

• They are both immune to the disease, and it is very likely that their children will also be immune to it
• There is a very high probability that one or both of them will develop the disease at some point in the futurue
• They both have an allele for the disease and could pass this allele on to their children, even though neither of them has the disease
• They both have the disease, but there is a very low probability that they will pass it on to their children

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2