The original population of brown spotted deer declined drastically after their forest habitat was flooded. After frantic efforts over three decades by the forest authorities to revive the dwindling population, it did bounce back. Now the deer population is as huge as it was three decades ago, but it shows a decreased amount of genetic variations. Which factor could be responsible for this microevolution?

Answers

Answer 1

Answer: Evolutionary bottleneck. The current population is descended from the few deer that existed at the population's lowest level.

Answer 2

Answer: A. Convergent evolution produces organisms with different adaptations but common ancestry, whereas adaptive radiation produces organisms with similar adaptations but different ancestry.

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20. Which of the following statements regarding human genetic disorders is accurate? A. Nondisjunction is responsible for causing Huntington's disease. B. Disorders in individual genes can cause disease or provide individuals with a genetic advantage. C. Disorders in individual genes are responsible for Down's syndrome. D. Nondisjunction can lead to an incorrect number of sex chromosomes.

Which of the following is a nitrogenous base?A) ribose
B) guanine
C) enzyme
D) cysteine

Answers

Answer:

B) Guanine

Explanation:

The nitrogenous bases are guanine, adenine, cytosine, thymine, and uracil (for RNA).

Answer:

Explanation:

Why do scientists think that the first true cells were probably anaerobic?

Answers

anaerobic because there was little oxygen; and
heterotrophic because autotrophism (the ability to manufacture your own food) is a more complex process ... the first cells would have derived energy from surrounding organic molecules, which makes them heterotrophic.

Celia is staring at the clock waiting for school to end so that she can go to track practice. She notices that the 4-inch-long minute hand is rotating around the clock and marking off time like degrees on a unit circle.Part 1: How many radians does the minute hand move from 1:25 to 1:50? (Hint: Find the number of degrees per minute first.)

Answers

Answer:

The minute hand moves $(5\pi)/(6)$ radians.

Step by step explanation:

We know that measure of complete circle is 360 degrees.

In a clock a complete circle means 60 minutes.

$60\text{ min }=360^(\circ)$

$1\text{ min }=(360)/(60)=6^(\circ)$

The minute hand move from 1:25 to 1:50, it means the minute have cover 25 minutes.

$25\text{ min }=(6* 25)^(\circ)$

$25\text{ min }=150^(\circ)$

Therefore minute hand moves 150 degree.

Multiply $(\pi)/(180)$ to convert degree into radian.

$150* (\pi)/(180)=(5\pi)/(6)$

Therefore the minute hand moves $(5\pi)/(6)$ radians.

How many radians does the minute hand move from 1:25 to 1:50?

Calculations are done as follows:

360 ° /60 minutes = 6° per minute
1:25 to 1:50 = 25 minutes

25 minutes x 6° per minute = 150°
150° (π/180) = 5π/6

Which mutation causes either the inclusion of an extra chromosome in offspring or the deletion of an entire chromosome?

Answers

The answer to the question stated above is non-disjunction.

Non-disjunction causes either the inclusion of an extra chromosome in offspring or the deletion of an entire chromosome. Non disjunction during either meiosis I or meiosis II creates gametes that will generate trisomies if fertilized.

The answer is Nondisjunction

Which type of molecule carries the genetic information that determines an organism's physical characteristics? a. RNA b. DNA c. protein d. carbohydrate

Answers

Answer:

b. DNA

Explanation:

DNA carries the genetic information that determines an organism's physical characteristics. DNA is a double-stranded molecule composed of nucleotides, and it contains the instructions for building and maintaining an organism. It serves as a blueprint for the synthesis of proteins, which are responsible for the physical characteristics and functioning of an organism. RNA plays a role in protein synthesis but does not carry the complete genetic information. Proteins and carbohydrates are important molecules in biological systems, but they do not directly carry the genetic information.

Final answer:

DNA is the molecule that carries the genetic information determining an organism's physical characteristics. It acts as a blueprint guiding organisms' growth, development, and reproduction.

Explanation:

The type of molecule that carries the genetic information that determines an organism's physical characteristics is DNA. DNA, which stands for deoxyribonucleic acid, is found in the cells of all living organisms and it serves as a guide for their growth, development, functioning and reproduction. While the other options you mentioned - RNA, Proteins, and Carbohydrates - all play important roles in biological processes, it is DNA that holds the genetic blueprint that gives each organism its unique traits.

Learn more about DNA here:

brainly.com/question/32215555

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Suppose a dominant allele (N) codes for a big nose and a recessive allele (n) codes for a small nose. Imagine that an organism receives a dominant allele from its mom and a dominant from its dad. What can be determined about its genotype and phenotype?

Answers

From the information given, we can determine that the organism's genotype is:

Nn (heterozygous dominant, aka one dominant allele and one recessive one)

Phenotype refers to how the genotype manifests in the organism, and since a dominant allele overrides the recessive one, the phenotype must be 'Big Nose' for this organism.

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Alyssa finds an organism in her yard that is growing underneath an old fencepost. It lives in a very dark, moist environment on decaying leaves. It grows three inches tall within one week, and it is attached to the ground. In which kingdom should this organism be classified?a. Animalia b. Eubacteria c. Fungi d. Protist