Ex.1 Which of the following statements regarding mutation rates is correct? a) Mutation rates are independent of gene size. b) Mutation rates for all genes of an organism are approximately the same. c) Mutation rates are independent of exposure to external agents such as UV radiation. d) Average mutation rates vary among taxonomic groups. Practice Problem 64 The amino acid changes noted in Parts A-C are the result of changes in DNA sequence. For each of these amino acid changes, evaluate whether a single base change in the given codons could account for the change in the amino acid. Part A For which codon(s) could a single base change account for this amino acid change? Lysine to Asparagine Select all that apply. UUU AAG AAA none of these codons Part B For which codon(s) could a single base change account for this amino acid change? Alanine to Phenylalanine Select all that apply. GCG GCU GCC GCA none of these codons Part C For which codon(s) could a single base change account for this amino acid change? Leucine to Glutamine Select all that apply. CUC UUG UUA CUG CUU CUA none of these codons

Answers

Answer 1

Answer: b) Mutation rates for allgenes of an organism are approximately the same.
Mutations result to certain adaptations, functional or behavioral adaptations refer to particular things that an organism or organisms do to survive. In the example above, behavioral adaptations that birds do is through certain bird calls and migration, while bears hunt during warmer seasons and hibernate during winter season.

Related Questions

Does this image represent an element, compound, or mixture? Explain how you Answer: know.
Which of the following statements about homologous chromosomes is correct?a. Each gene is at the same locus on both chromosomes. b. They are two identical copies of a parent chromosome which are attached to one another at the centromere. c. They always produce identical phenotypes. d. They are chromosomes that have identical genes and alleles.
In what way can an economist use a production possibilities graph to express efficiency?
The experiment that produces the most reliable results is the one in which the a. hypothesis is proved b.first hypothesis was changedc.results are repeatabled.latest equipment was used
Which of the following represents a group of protists that is difficult to classify as either protozoan or algae because some species have chloroplasts, but others do not?

Fats are broken into saturated fats and unsaturated fats. Which of these explains the difference between saturated and unsaturated fats?A) Saturated fats have no hydrogen in the molecule.
B) Saturated fats have more carbon atoms than unsaturated fats.
Eliminate
C) Saturated fats have only single bonds on all the carbon atoms.
D) Saturated fats have only double and triple bonds on the carbon atoms.

Answers

i think it is D because Saturated fats have only double and triple bonds on the carbon atoms will be

Which force is responsible for waves and surface currents? a. heat
b. friction
c. gravity
d. pressure

Answers

Ocean tides are caused by the gravitation of the Moon. Currents can beformed by the flow of tidal water around the continental plates, or by adifference in water temperature between large ocean areas. Surfacewaves are caused by the wind. Abnormal waves can be created by thetectonic movement of plates around and under the ocean floor (tsunamis).So as you can see, the answer is (C) Gravity

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Explain why the lithosphere is indispensable to life. Give at least two reasons. PLEASE ASAP

Answers

The lithosphere of Earth comprises the crust and the uppermost mantle. The lithosphere consists of separate tectonic plates. The uppermost part of the lithosphere has undergone chemical and physical processes to form a soil layer called the pedosphere. The pedosphere is vital to life on Earth and an intrinsic part of all terrestrial ecosystems. The pedosphere provides a substrate for primary producers, i.e., plants, which are in turn vital for all other life on Earth. The pedosphere is also a vital part of the hydrological cycle, as groundwater feeds streams and soil and groundwater is taken up by plants.

_______ is a connective tissue consists of large round densely packed cells with the nucleus pushed to one side.

Answers

Answer:

Adipose tissue

Explanation:

Adipose tissue is formed of adipocytes and it store the energy in the form of fats.
Adipose tissue also act as endocrine organ by secreting leptin, estrogen, resistin and cytokines.
Adipose tissue is composed of white adipose tissue (store energy) and brown adipose tissue (heat production).

Final answer:

Cartilage is the connective tissue consisting of large round densely packed cells with the nucleus pushed to the side. Other forms of connective tissue include Dense regular and irregular connective tissues, fibrous connective tissues, and loose or areolar connective tissue.

Explanation:

The connective tissue consisting of large round densely packed cells with the nucleus pushed to the side is called cartilage. Cartilage is a type of connective tissue that has a large amount of ground substance matrix and cells called chondrocytes, along with some amount of fibers. Other forms of connective tissue include Dense regular and irregular connective tissues, fibrous connective tissues, loose or areolar connective tissue. Dense connective tissue, including regular and irregular, consists of collagenous fibers packed in different alignments. Fibrous connective tissues contain copious amounts of collagen fibers but few cells or matrix material. Finally, loose or areolar connective tissue is encapsulated in a matrix and is found around blood vessels and most body organs.

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Angiosperms are flowering plants. The carpal is a reproductive organ within the flower. What part of the carpal becomes the fruit when fertilization occurs?

Answers

The answer is an ovary.

The carpal is the female part of a flower and it consists of the style, stigma, and ovary. After pollen lands on the stigma, pollen tube begins to grow until it reaches an ovule which is inside the ovary. A nucleus of pollen will fuse with a nucleus of the ovule and that fertilization will occur. A fertilized ovule becomes seeds surrounded by the ovary which matures and becomes the fruit.

Angiosperms are flowering plants. The carpal is a reproductive organ within the flower. The carpal is the female organ at the center of the flower and it consists of the ovary, style, and stigma. The ovary is the lower part of the pistil that ripens into a fruit and it consists of the ovule.

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Which of the following best describes deflation as it relates to Earth science? A. Beach erosion caused by high tides
B. An avalanche caused by skiers
C. High tides caused by full moons
D. The lowering of land surface caused by wind

Answers

The lowering of land surface caused by wind best describes deflation as it relates to earth science. So for the given question, the right option will be option “D”. The word deflation can be used in a variety of ways. In case of finances, this is a commonly used term and is the opposite of inflation. In case using this word in relation to earth, it can be used to describe the erosion of loose materials by the force of wind from dry and flat areas like the deserts.

the answer is D.The lowering of land surface caused by wind
Deflation is wind activity which also causes rock erosion or transports sand and dirt.

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