agriscience

How do somatic and sex cells differ?

Number of chromosomes and Type of cell division

Dane recently crossed two of his shorthorn cattle. His calf had both red and white in its coat. Dane's offspring is a result of ______________.

Partial dominance

What type of cells are found in bacteria?

Prokaryotic

How many primary roots are in a taproot system?

1

In alternate leaf patterns, how many leaves are produced at each node?

1

Accoring to the presentation, approximately how many people do NOT have access to sufficient supplies of food?

800 million

Which is NOT a function of the stem in plants?

Anchor the Plant to the ground

A scientist is analyzing a cell under a microscope. He notices it only has half of a paired chromosome. What is true about this cell?

Cell gamete and meiosis

An animal has a genetic mutation. Which step in the cellular level did the mutation occur?

DNA replication

If two identical animals are raised separately, but do not look exactly the same in a year, which factors contribute to this phenomenon?

Environmental factors

Which of the following is the second step in the development of a genetically modified crop? a. Determine if genetic engineering is the best option

Identify the gene of interest

Which of the following is NOT a part of the cytokinin hormone?

Indoleacetic acid (IBA)

Which of the following is NOT a characteristic of the nucleus?

Is spherical, rod-shaped organelles

Somatic cells divide during ___________, while gametes undergo ____________.

Mitosis, meiosis

Which of the following methods helps identify genes with higher frequency?

marker assisted selection

The "Father of Genetics" studied inheritance patterns and determined they could be described

mathematically

Which cell structure has a double membrane surrounding it?

mitochondria

Which of the following layering methods is accomplished by cutting plants to no less than one inch tall during dormancy and mounding soil over new plant shoots as they begin to grow?

mound layering

Which plant part connects the leaf blade to the stem?

petiole

Which part of the stem transports sugars?

phloem

Which of the following is the female part of the plant?

pistil

What are small organelles found in large numbers in the cytoplasm of a cell called?

ribosomes

According to the presentation, teosinte, the ancient relative of corn was developed through which of the following methods?

sexual propogation

Which of the following is NOT a tissue found in the stem?

stele

Which type of roots grow directly downward?

taproots

Which part of the plant cell surrounds the cell as a thin layer of lipids and proteins?

cell membrane

Which part of the plant cell provides the structural support and protection?

cell wall

Which of the following is NOT a fruit type?

complex

Which type of plant tissue is NOT part of the vascular bundle?

cortex

Which of the following is NOT a common use for biotechnology?

create new animal species

Where is rough endoplasmic reticulum located?

cytoplasm

Which cell structure contains the cytoskeleton, cytosol and the organelles?

cytoplasm

Which of the following is NOT a characteristics of a vacuole?

does not contain nuclei

Which type of root system is found in grasses?

fibrous root system

Which part of the flower is the peduncle?

flower stem

Which of the following methods provides the promise in the future for plants to be used to produce vaccines, pharmaceuticals and even netriceuticals for human and animal consumption?

genetic engineering

Which of the following methods utilizes recombinant DNA?

genetic engineering

allows animals to naturally adapt to their environments.

genetic variation

is determined by the combination of alleles or genes at a certain loci.

genotype

A producer wants to increases the chances of having a dominate allele at every loci. He decides to cross two non-related animals. Which genetic practice is the producer utilizing?

heterosis

Which type of flower is missing either the pistil or the stamen?

imperfect

Which of the following is NOT a characteristic of plants?

capable of moving by themselves

Which of the following methods is accomplished by making a cut into a developed stem, covering in sphagnum moss and protecting it with either aluminum foil or plastic?

air layering

What types of stems are in plants?

all above

The seed is made up of which of the following parts?

all answers