Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 26, Problem 9TYPSS
PROCESS OF SCIENCE Streptococcus mutans obtains energy by oxidizing sucrose. This bacterium is abundant in the mouths of Western European and North American children and is a prominent cause of cavities. The organism is virtually absent in children from East Africa, where tooth decay is rare. Propose a hypothesis to explain this observation. Outline the design of a study that would test your hypothesis.
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UARDIAN
SIGNA
Life Sciences/ Baseline Test
Grade 10
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in full sentences using NO MORE than 70 words
sentences from 1 to 7.
only ONE point per sentence.
words as far as possible.
number of words you have used in brackets at the end
GDE/2024
QUESTION 3
The table below shows the results of an investigation in which the effect of
temperature and light on the yield of tomatoes in two greenhouses on a farm
was investigated.
TEMPERATURE
(°C)
AVERAGE YIELD OF TOMATOES PER
3.1
PLANT
(kg)
LOW LIGHT LEVELS
HIGH LIGHT LEVELS
5
0,5
0,5
10
1,5
2,5
15
3,0
5,0
20
3,6
8,5
25
3,5
7,8
30
2,5
6,2
State TWO steps the investigator may have taken into
consideration during the planning stage of the investigation.
(2)
3.2
Identify the:
a) Independent variables
(2)
b) Dependent variable
(1)
3.3
Plot a line graph showing the results of the average yield of the
tomatoes from 5°C to 30°C for low light levels.
(6)
3.4
State ONE way in which the scientists could have improved the…
Explain why you chose this mutation. Begin by transcribing and translating BOTH the
normal and abnormal DNA sequences. The genetic code below is for your reference.
SECOND BASE OF CODON
כ
FIRST BASE OF CODON
O
THIRD BASE OF CODON
SCAGUCAGUGAGUCAG
UUU
UUC
UCU
UAU
UGU
Phenylalanine
(F)
Tyrosine (Y)
Cysteine (C)
UCC
UAC
UGC
Serine (S)
UUA
UUG
Leucine (L)
UCA
UCG_
UAA
UGA
Stop codon
-Stop codon
UAG
UGG -Tryptophan (W)
CUU
CUC
CCU
CAU
CGU
Histidine (H)
CCC
CAC
CGC
-Leucine (L)
Proline (P)
CUA
CCA
CAA
CUG
CCG
CAG-Glutamine (Q)
-Arginine (R)
CGA
CGG
AUU
ACU
AAU
AGU
AUC
Isoleucine (1)
Asparagine (N)
ACC
AAC
Threonine (T)
AUA
ACA
AAA
Methionine (M)
Lysine (K)
AUG
ACG
Start codon
AAG
AGC-Serine (S)
-Arginine (R)
AGA
AGG
GUU
GCU
GAU
GUC
GUA
GUG
GCC
Valine (V)
-Alanine (A)
GCA
GCG
GAC
GAA
GAG
Aspartic acid
(D)
GGU
Glutamic acid
(E)
GGC
GGA
GGG
Glycine (G)
In order to provide a complete answer to the question stated above, fill in the mRNA bases
and amino acid sequences by using the Genetic Code…
Chapter 26 Solutions
Biological Science (7th Edition)
Ch. 26 - 1. What do some photosynthetic bacteria use as a...Ch. 26 - What are organisms called that use inorganic...Ch. 26 - Prob. 3TYKCh. 26 - 5. What has metagenomic analysis allowed...Ch. 26 - Prob. 6TYUCh. 26 - Prob. 7TYUCh. 26 - Prob. 8TYUCh. 26 - PROCESS OF SCIENCE Streptococcus mutans obtains...Ch. 26 - PROCESS OF SCIENCE Suppose that you’ve been hired...Ch. 26 - Prob. 11PIAT
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