BIOLOGY HIGH SCHOOL

Which mathematical symbol would best fill in the blank?7.6 repeating blank the square root of 55
CHOICE'S
A. <
B. >
C. =
D.~

Answers

Answer 1
Answer:

Answer:

B

Explanation:

use the calculator to find the value of √55 ≈ 7.4

7.6 is greater than 7.4 so

7.6 > √55

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the DNA sequence reads ACGTTCATT before a mutation occurs. after the mutation, the DNA sequence reads ATCGTTCATT. which type of mutation occurred

Answers

Answer : The correct answer is -

Insertion mutation.

An insertion mutation can be described as a permanent change in the genetic material (DNA sequence) due to the addition of one or more nucleotides. It can result in alteration of protein (due to the change in the reading frame of DNA) , which may cause diseased condition.

In the given question, there is addition/insertion of T (thymine) at the second place in the original DNA sequence-

Original DNA sequence -

ACGTTCATT

Mutated DNA sequence - ATCGTTCATT

Thus, it is an insertion mutation.

addition, you added an extra T between the first A and C

How does water at room temperature become gas?

Answers

Liquids can evaporate at room temperature and at an average air pressure. Evaporation happens when atoms or molecules release from the liquid and turn into a vapor. 

A light microscope that makes the specimen appear light on a dark background is called a(n) _____.

Answers

A light microscope that makes the specimen appear light on a dark background is called a compound microscope. Compound microscope accomplishes more elevated amounts of amplification than a stereo or low power magnifying lens. It is utilized to see littler examples, for example, cell structures which can't be seen at lower levels of amplification. Basically, a compound magnifying lens comprises of auxiliary and optical segments.

The correct answer is Dark-field microscope.

Which statement about crustaceans is true? *(A) all have the same number of appendages

(B) all have an internal skeleton

(C) all have an exoskeleton

(D) only some have jointed appendages

Answers

Answer:

C. All have an exoskeleton

Explanation:

Crustaceans is a subphylum

of Arthropoda. The study of crustaceans is knows as carcinology or crustaceology.

They are important sources of food and they consist of crabs, crayfish, prawns etc. They are closely related to insects in terms of morphological(structural) features.

Crustaceans have varying numbers and structure of appendages. However they lack endoskeletons and possess exoskeletons.

Which of the following statements does NOT contribute to the evidence in support of evolution?(A) Sequences of fossils have been found that show a gradual series of changes in form among organisms.
(B) Species thought to be related through evolution from a common ancestor show many anatomical similarities.
(C) The stages of embryological development in animals are quite similar among highly diverse types of organisms.
(D) Similarities in chromosome structure, DNA sequence, and amino acid sequence suggest relationships among organisms descending through evolution from a common ancestor.
(E) The most well adapted individuals do not always produce the most fit offspring.

Answers

Definitely option E! This refers to exceptions to the 'survival of the fittest' - but the theory still holds despite these anomalies.

In which step of translation does the tRNA become charged?

Answers

transfer of RNA becomes charged in activation. charged tRNA occurs when amino acid is attached. Reads the codon of mRNA during translation.
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