Lets see if you can Answer this test!
Question 1(Multiple Choice Worth 4 points)
(06.01 HC)
Two methods of biotechnology used by scientists are described below.
Process A: Inserted a pesticide gene into a soybean
Process B: Used plants and microorganisms to create a new biofuel
Which process is likely to be more advantageous in conservation?
Process B because it will reduce our dependency on fossil fuels
Process A because it will increase the number of pests in the environment
Process B because it will cause an increase in fossil fuel pollution
Process A because more food will increase the global population
Question 2(Multiple Choice Worth 4 points)
(06.04 LC)
Which type of reproduction involves only one parent?
Asexual
Cytokinesis
Meiosis
Sexual
Question 3(Multiple Choice Worth 4 points)
(06.03 LC)
What tool is used to track inherited traits between parents and offspring?
Allelic pair
Family tree
Pedigree chart
Punnett square
Question 4(Multiple Choice Worth 4 points)
(06.02 LC)
Which of the following personal health conditions can be controlled by exercise and diet?
Heart disease
Sickle cell anemia
Skin cancer
Sunburn
Question 5(Multiple Choice Worth 4 points)
(06.02 MC)
Which of the following is true about the offspring of an organism Y that reproduces sexually?
The offspring would show all the traits of Y.
The offspring would be identical in size to Y.
The offspring would have identical DNA as Y.
The offspring would show some traits of the parent other than Y.
Question 6(Multiple Choice Worth 4 points)
(06.04 MC)
A few characteristics of a type of reproduction are shown below:
1. Occurs in all body cells
2. Two daughter cells are formed
3. Chromosomes arrange equally on either side of the equator
4. The daughter nuclei each have half the number of chromosomes as that of parent cells
5. Is necessary for sexual reproduction
Which of the above are characteristics of meiosis?
1, 2, and 3
1, 4, and 5
2, 3, and 4
3, 4, and 5
Question 7(Multiple Choice Worth 4 points)
(06.02 LC)
Which of the following hereditary conditions is characterized by abnormally shaped blood cells?
Acne
Heart disease
Sickle cell anemia
Type 1 diabetes
Question 8(Multiple Choice Worth 4 points)
(06.01 MC)
What is the likely advantage of growing a genetically modified variety of tomato that remains fresh over several days?
Post-harvest losses due to delayed transportation would be reduced.
Disease-causing pests may never be able to attack such a variety of tomato.
When consumed it would provide more nutrients than the regular variety.
When consumed it would improve the quality of life of people with genetic disorders.
Question 9(Multiple Choice Worth 4 points)
(06.01 HC)
A corn plant has been genetically engineered. It produces pollen that can make its own toxins. These toxins protect the corn plant against pests. What is a likely impact on the environment around the corn plant?
Bird and butterfly populations around the area may increase.
The concentration of pesticides in a nearby lake would increase.
Newer strains of pesticide-resistant pests may develop.
The carbon dioxide level would increase in the area.
Question 10(Multiple Choice Worth 4 points)
(06.04 MC)
Some steps in cell division are shown below:
1. Chromosomes condense and pair up
2. Segments of DNA of sister chromatids twist and cross
3. Exchange of DNA occurs between chromosomes
4. Four daughter cells are created that are haploid
Which of the following steps is least likely to occur during meiosis 1?
Step 1
Step 2
Step 3
Step 4
Question 11(Multiple Choice Worth 4 points)
(06.01 MC)
Which type of biotechnology would a dairy farmer use to mate the cows at his farm with genetically superior bulls to produce offspring that give high-quality milk?
Genetic engineering because the genes of the cows are altered
Genetic engineering because cows with desirable traits are produced
Artificial selection because offspring with desirable traits are produced
Artificial selection because the process reduces the production time of offspring
Question 12(Multiple Choice Worth 4 points)
(06.02 HC)
In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with long wings?
Either LL or Ll
Either Ll or ll
Only LL
Only ll
Respiration begins when air enters the mouth and nose. As air goes down the trachea, or windpipe, tiny hairs called cilia gently wave to keep dirt and mucus out. At the bottom of the trachea are two tubes called bronchi. One bronchus goes into the left lung, and the other goes into the right lung. When you inhale, the diaphragm muscle between the lungs and abdomen contracts, making room for the lungs to expand.
Which of these best describes how the lungs and diaphragm affect each other?
A
As the lungs expand, the diaphragm expands.
B
As the lungs expand, the diaphragm contracts.
C
As the lungs contract, the diaphragm contracts.
D
The lungs and diaphragm have no relationship.
Please answer I need help
1. A hurricane draws its energy from the cold, dry air near the ocean's surface. true or false
2. when a hurricane passes over land, it loses its energy source
true or false
Why are index fossils useful for determining the age of other fossils or rock layers?
Answer:
yes
Explanation:
Describe the inheritance pattern of blood types. Describe the inheritance type of different hair colors. Why are each unique?
Which of these are present in both woody and herbaceous stems? (Select all that apply.)
rings
seedlings
phloem
xylem
which best summarizes organ systems
a. a group of organelles working together to perform a certain job
b. a group of tissues working to perform a certain job
c. a group of Organs working to perform a certain job
d. a group of cells working together to perform a certain job
Answer:
I think A could be the correct answer
how can you explain what you know about the heavily muscled cows with what you have learned about mutations, patterns of inheritance, incomplete dominance, sexaul reproduction, selective breeding and transferring of genetic information?
Myostatin (GDF-8) is a member of the transforming growth factor β superfamily of secreted growth and differentiation factors that is essential for proper regulation of skeletal muscle mass in mice. Here we report the myostatin sequences of nine other vertebrate species and the identification of mutations in the coding sequence of bovine myostatin in two breeds of double-muscled cattle, Belgian Blue and Piedmontese, which are known to have an increase in muscle mass relative to conventional cattle. The Belgian Blue myostatin sequence contains an 11-nucleotide deletion in the third exon which causes a frameshift that eliminates virtually all of the mature, active region of the molecule. The Piedmontese myostatin sequence contains a missense mutation in exon 3, resulting in a substitution of tyrosine for an invariant cysteine in the mature region of the protein. The similarity in phenotypes of double-muscled cattle and myostatin null mice suggests that myostatin performs the same biological function in these two species and is a potentially useful target for genetic manipulation in other farm animals.
The transforming growth factor β superfamily encompasses a large group of secreted growth and differentiation factors that play important roles in regulating development and tissue homeostasis (1). We have recently described a member of this family, myostatin, that is expressed specifically in developing and adult skeletal muscle and functions as a negative regulator of skeletal muscle mass in mice (2). Myostatin null mice generated by gene targeting show a dramatic and widespread increase in skeletal muscle mass. Individual muscles in myostatin null mice weigh 2- to 3-fold more than those of wild-type mice, primarily due to an increased number of muscle fibers without a corresponding increase in the amount of fat. To pursue potential therapeutic and agricultural applications of increasing muscle mass by inhibition of myostatin activity, we have been characterizing myostatin in animals other than mice. Here we report that the myostatin gene is highly conserved among vertebrate species and that two breeds of cattle that are characterized by increased muscle mass (double muscling), Belgian Blue (3) and Piedmontese (4), have mutations in the myostatin coding sequence. These results demonstrate that the function of myostatin has been highly conserved among vertebrates. hope it helps
Important test and i have limited time so please hurry <3
also is this the right subject for these questions or no i honestly dont know
Answer:
bird eat grasshopper
grasshopper eat plant
plant eat soil
Please help
Silk Flexibility Model
Answer:
Explanation:
The Terrific Tostada is a popular restaurant for churros and fried ice cream desserts. Last week, 1,125 diners ordered churros or fried ice cream. There were 4 times as many orders for churros as fried ice cream.
How many diners ordered churros last week?
I will give brainly to correct answer and if you dont get brainly lmk if you want me to make a fr33 p01nts questions so you get brainly
Which process does a plant use to release energy from food?
photosynthesis
reproduction
respiration
transpiration
Answer:Its photosynthesis
Explanation:
Answer:
photosynthesis
hope it helps
Pls hurry! its a important test
Answer:
Yea D sounds right........................
Imagine you could interview one of the Scientists mentioned in this lesson. Think of at least 4 questions you could ask them. Then imagine they could answer your questions. Write out (or type) how you think this interview would sound.
Answer:
I would interview Thomas Edison.
1. What idea you had for inveting the telephone?
- "I basiclly used a battery to provide current on the phone line and to control its strength by using carbon to vary the resistance".
2.Did you once wanted to give up while creating an artwork?
My only answer and quote im giving is this: “I have not failed 10,000 times – I've successfully found 10,000 ways that will not work.”
3.What inspired you?
-"I got my intrest by The Civil War it got me interested in invention."
4.How did you came up with the materials for making with your inventions?
"One night, after absent-mindedly rolling between my fingers a piece of lampblack, the material he used in his telephone receiver, I got the idea for switching to a carbonized filament".
5. So, Last question. Why you have to fail to succeed?
"Failure makes you better."
You have to find a way to find success through failure, and so you open yourself up to new ideas and new solutions to the same old problems. It may be difficult to cope with the setback at first, but eventually, mistakes will excite you.
Describe the three types of mammals. Give examples of each. How is reproduction/offspring different in each?
Answer:
1) Monotremes are mammals that lay eggs. The only monotremes that are alive today are the spiny anteater, or echidna, and the platypus. These mammals are really different from other mammals. Their body temperature is lower than most warm-blooded animals, a feature that has more in common with reptiles. Their name comes from the fact that they have only one body opening for both wastes and eggs to pass through.
2) Marsupial mammals give birth to babies that are not completely developed. The babies are very tiny. The babies then crawl up the fur on the mother's belly into a pouch on the outside of the mother's abdomen. The babies drink milk from the mother and continue to develop inside the pouch. Koalas, kangaroos, wallabies, and opossums are some of the better-known marsupials.
3)A placental mammal develops inside its mother's body until its body systems can function on their own. The name of this group comes from the placenta, an organ in pregnant female mammals that passes materials between the mother and the developing baby. Food and oxygen, carried by blood, pass from the mother to the baby through the placenta. Most mammals, including humans, are placental mammals.
Explanation:
Viruses vary in size and structure, but what is one thing they have in common?
a. they destroy the host cell
b. they all cause terminal illness
c. they all hijack a host cell
d. none of the above