Genetics Test Review (SL4)

What would be the sequence of bases of an mRNA molecule that was transcribed from the sequence of DNA bases shown below? GTAGTAGGT

• GTAGTAGGT

• CAUCACUCCA

• UCGUCGUUC

• AUGAUGAAU

• CATCATCCA

A form of vitamin D-resistant rickets, known as hypophosphatemia, is inherited as an X-linked dominant trait. If a male with hypophosphatemia marries a normal female, which of the following predictions concerning their potential offspring would be true?

• All their sons would inherit the disease.

• All their daughters would inherit the disease.

• About 50% of their sons would inherit the disease.

• None of their daughters would inherit the disease.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How does Meiosis create new genetic combinations?

• In prophase I, the chromosomes preform crossing over.

• Meiosis cuts the number of chromosomes in diploid cells in half.

• In prophase II, the chromosomes preform crossing over.

• Meiosis does not make new genetic combinations, Mitosis does.

Tags

NGSS.HS-LS3-2

Sex cells are called ___.

• gametes

• somatic

• zygotes

• alleles

Tags

NGSS.HS-LS3-2

The alternative forms of genes are called ___.

• alleles

• genes

• cells

• gametes

The observable characteristic, such as seed color is known as the ___.

• genotype

• phenotype

• gamete

• inheritance

An organism that has both a dominant and recessive allele is considered ____.

• homozygous

• heterozygous

• dihybrid cross

If the allele for a tall plant (T) is dominant over the allele for a short plant (t), what would the genotype be for a short plant?

• TT

• Tt

• tt

Tags

NGSS.HS-LS3-2

Some flowers can be codominant. Let's say a codominant purple and white flower (PW) is crossed with a white flower (WW), what is the chance the offspring would be a purple and white?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS4-3

If a female fruit fly heterozygous for red eyes (XR Xr) crossed with a white-eyed male (Xr Y), what percent of their offspring would have white eyes?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3