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