bio chapter 13 14

The human genome is minimally contained in which of the following?

• every human cell

• the entire human population

• each human gene

• the entire DNA of a single human

In the human species, all somatic cells have 46 chromosomes. Which of the following can also be true?

• A certain fungal species has only one chromosome per cell.

• Some adult humans have 23 chromosomes per cell.

• A certain bacterial species has 23 chromosomes

• Some adult humans have 69 chromosomes per cell.

• A plant species (privet shrubs) has 46 chromosomes per cell.

Tags

NGSS.HS-LS3-1

Which of the following is a true statement about sexual vs. asexual reproduction?

• In sexual reproduction, individuals transmit 50% of their genes to each of their offspring.

• Asexual reproduction produces only haploid offspring.

• In asexual reproduction, offspring are produced by fertilization without meiosis.

• Sexual reproduction requires that parents be diploid.

Which of the following defines a genome?

• representation of a complete set of a cell's polypeptides

• representation of a complete set of a cell's polypeptides

• the complete set of an organism's genes

• the complete set of an organism's genes

At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype?

• anaphase

• metaphase

• prophase

• interphase

Tags

NGSS.HS-LS1-4

The human X and Y chromosomes

• are both present in every somatic cell of males and females alike.

• include genes that determine an individual's sex.

• are of approximately equal size and number of genes

• include only genes that govern sex determination

The human X and Y chromosomes

• are both present in every somatic cell of males and females alike.

• include genes that determine an individual's sex.

• are of approximately equal size and number of genes

• include only genes that govern sex determination

Referring to a plant's sexual life cycle, which of the following terms describes the process that leads directly to the formation of gametes?

• sporophyte meiosis

• gametophyte mitosis

• alternation of generations

• sporophyte mitosis

Which of the following best describes a karyotype?

• the combination of all the maternal and paternal chromosomes of a species

• a display of each of the chromosomes of a single cell

• a photograph of all the cells with missing or extra chromosomes

• the collection of all the chromosomes in an individual organism

Which of the following happens at the conclusion of meiosis I?

• Sister chromatids are separated.

• The sperm cells elongate to form a head and a tail end.

• The chromosome number per cell is conserved.

• Four daughter cells are formed.

• Homologous chromosomes are separated.