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3 years ago

Which option best describes genes?

Biology

2 answers:

lions [1.4K]3 years ago

8 0

Answer: I think it‘s 1, it just makes more sense. Sorry if I am wrong but hope this helps anyone.

ycow [4]3 years ago

4 0

Anwser
a

explanation
genes are dna that join together to get chromosomes.

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11.1 The Science of Ecology Lesson 11.1: True or False Name __________________ Class ______________ Date ________ Write true if

tangare [24]

Answer:

See explanation below

Explanation:

1. Biotic factors include sunlight, soil, temperature, and water. FALSE

Biotic factors include animals, plants, fungi, bacteria and protists.

2. Like nutrients and water, energy also recycles through an ecosystem. FALSE

3. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. TRUE

4. Herbivores are a necessary link between producers and other consumers. TRUE

5. A niche refers to the place an organism lives within its ecosystem. TRUE

6. Dung beetles eat animal feces. TRUE

7. Autotrophs make their own food. TRUE

8. Organisms use 90% of the available energy at each trophic level. FALSE

9. Carnivores include lions, polar bears, hawks, frogs, salmon, and deer. FALSE

Deer is a herbivore.

10. Biomass increases at the upper levels of a food chain. FALSE

11. Producers occupy the first trophic level. TRUE

12. Scavengers include vultures and raccoons. TRUE

13. In a complex ecosystem, it is likely that two different species will occupy the same niche. FALSE

14. The habitat is the role of a species in its ecosystem. FALSE

15. A food web shows how energy flows through an ecosystem. TRUE

4 0

2 years ago

Read the overview and complete the interactivities that follow. The lac operon consists of a series of genes involved in the bre

Ber [7]

Answer:

1 True 2 false 3 false 4 true 5 true

Explanation:

1 The Lac I gene makes repressor protein True

2 The structural genes encoded by lac operon are involved in lactose synthesis false

3 The CAP protein is an activator protein that binds to the operator false

4 The product of Lac I is an allosteric protein that can undergo conformational change when allolactose binds to it True

5 CAP binding causes DNA to bend facilitating RNA polymerase binding True

4 0

3 years ago

On my test Pls Help

Dominik [7]

Answer:

Explanation:

Bonds form when atoms share or transfer valence electrons. In a covalent bond, two atoms share one or more electrons. Water is a polar molecule. A hydrogen bond is a relatively weak bond between two oppositely partially charged sides of two or more molecules.

4 0

3 years ago

Do male and female offspring possess the same likelihood of carrying the colorblindness trait in their genotype

Katen [24]

Complete question:

Punnet squares for genes found in sex chromosomes are unique in that the pattern of inheritance of these traits is gender-specific. For example, examine the following Punnet square for color blindness, a trait found in the X chromosome (Y chromosome carry only a few genes but they do not possess enough coded information to initiate the development of the male).

Xcb represents the X chromosome carrying the color blindness trait. The allele for color blindness is recessive to the normal form of the gene (X).

Punnet square:

Mother

Xcb X

Father X X Xcb X X

Y Xcb Y X Y

Do male and female offspring possess the same likelihood of carrying the colorblindness trait in their genotype?

Answer:

YES. Male and female offspring will have the same likelihood of carrying the colorblindness trait in their genotype.

Explanation:

Due to technical problems, you will find the complete explanation in the artached files.

Download pdf

6 0

3 years ago

Which substance is completely consumed in a chemical reaction?

Rudiy27

Answer:

Limiting Reactant

Explanation:

Observe the answer choices:

A) Limiting Reactant; a limiting reactant, as can be seen from the name, is the reactant that limits the amount of products can be made. This is because the reaction can only go on if there is enough reactants. However, the limiting reactant is the one that will run out first, so it's going to be completely consumed.

B) Reactant; a reactant is the thing that is being consumed in a reaction. However, reactants aren't always completely consumed. There's something called an excess reactant, which is essentially the opposite of a limiting reactant in that when the limiting reactant is used up, there's still some excess reactant left - because it's in excess / there's more than enough remaining. So, this is incorrect.

C) Products are the ones that are created during the chemical reaction, so they aren't consumed in any way. Thus, this is wrong.

The answer is limiting reactant.

Hope this helps!

3 0

3 years ago