Corn

Choose 2 of the 5 major types of Corn and explain how they were developed.

• Through selective breeding and genetic modification

• By natural selection and spontaneous mutation

• Through cross-pollination and hybridization

• By importing and exporting different corn varieties

Which journal published the genome sequences from 26 different strains of corn?

• Nature

• Science

• Cell

• The Lancet

Who mapped the first corn genome in 2009?

• Barbara McClintock

• Doreen Ware

• Rob Martienssen

• W. Richard McCombie

What does the new collection reveal about the corn genome?

• It has remained unchanged over time.

• It shows no signs of environmental adaptation.

• It has been shuffled over time.

• It indicates a decrease in corn production.

Tags

NGSS.MS-LS4-2

What have different strains of corn experienced according to the text?

• Similar environments and diseases.

• The same selective pressures.

• Different environments and selective pressures.

• No selective pressures at all.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Where was CSHL Adjunct Professor and USDA research scientist Doreen Ware pictured?

• In a laboratory at CSHL.

• In a cornfield at CSHL's Uplands Farm.

• At the University of Minnesota.

• Online at the Maize Pangenome website.

How many metric tons of corn were grown in the US from 2018 to 2019?

• Over 300 million metric tons.

• Exactly 366 million metric tons.

• Less than 366 million metric tons.

• More than 366 million metric tons.

What is the significance of having more detailed maps of the corn genome?

• They are useful for historical research.

• They help in developing crops for a changing climate.

• They are only for educational purposes.

• They decrease the need for agricultural research.

Tags

NGSS.HS-LS3-2

What is the primary purpose of corn's tassel?

• To attract pollinators

• To produce pollen

• To store nutrients

• To protect the plant

Which part of the corn plant is responsible for photosynthesis?

• Roots

• Kernels

• Leaves

• Tassel

Tags

NGSS.MS-LS1-6