Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 11.1, Problem 3CC
Summary Introduction
To explain:
Whether self-pollination is considered asexual or sexual reproduction
Introduction:
Reproduction is the process of producing the young ones from the existing one; it enables a species to survive within an environment. There are mainly two modes through which an organism can reproduce; sexual and asexual mode.
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Biology Form Four
Student Book
W OF INDEPENDENT ASSORTMENT
began his experiments to study the inheritance of two or more traits
together, and does the inheritance of one trait affect theother trait.
Activity 2
Study the figure below, which represents the second generation of the results of
self-pollination of a pea plant, the symbol for the yellow trait of seeds is (Y) and
green seeds (y), and for smooth seeds (R) and wrinkled seeds (r). Answer the
questions that followthe diagram:
F1 cross
RrYy x RrYy
RY
Ry
RRYY
ry
RRYY
RrYY
RrYy
round yellow
RY
round green
wrinkled yellow
RRYY
RRyy
RrYy
Rryy
wrinkled green
Ry
ANES BND
bilities
RrYY
RrYy
rrYY
rrYy
idual carrying the
rY
probability of the
e of gamet y from
th the appearance
RrYy
Rryy
rrYY
rryy
ry
e appears Jj is ¼+
1. Write the genotype and phenotype of the parents in the first generation.
2. Write the genotypes of gametes in the first generation.
3. Write the genotypes and phenotype of first generation individuals.
4. How many types…
MAKE CONNECTIONS In seed plants, how might retaining the gametophyte within the sporophyteaffect embryo fitness? (See Concepts 17.5, 23.1, and 23.4 to review mutagens, mutations, and fitness.)
Consider the following statements and indicate whether each presents an idea of Jean-
Baptiste Lamarck, of Charles Darwin or of both scientists. On the blank before the statement,
write L for Lamarck, D for Darwin or B for both.
1) An organism directs its own adaptations because of an inborn urge to be perfect (that
is, to be better suited to the environment).
2) Individuals do not evolve, but populations do.
3) Individuals in a population exhibit variation in their traits, such that no two
individuals are exactly alike.
1
4) Many different kinds of living things are adapted to their environment.
5) Members of a population who are better adapted to the environment have higher
chances of survival and reproduction.
6) Parents pass on their traits to their offspring.
C
Chapter 11 Solutions
Campbell Biology In Focus
Ch. 11.1 - DRAW IT Pea plants heterozygous for flower...Ch. 11.1 - List all gametes that could be made by a pea plant...Ch. 11.1 - Prob. 3CCCh. 11.2 - For any gene with a dominant allele A and...Ch. 11.2 - Two organisms, with genotypes BbDD and BBDd, are...Ch. 11.2 - Prob. 3CCCh. 11.3 - Incomplete dominance and epistasis are both terms...Ch. 11.3 - Prob. 2CCCh. 11.3 - WHAT IF? A rooster with gray feathers and a hen of...Ch. 11.4 - Beth and Tom each have a sibling with cystic...
Ch. 11.4 - MAKE CONNECTIONS In Table 11.1, note the...Ch. 11 - DRAW IT Two pea plants heterozygous for the...Ch. 11 - A man with type A blood marries a woman with type...Ch. 11 - A man has six fingers on each hand and six toes on...Ch. 11 - Prob. 4TYUCh. 11 - Flower position, stem length, and seed shape are...Ch. 11 - Prob. 6TYUCh. 11 - Prob. 7TYUCh. 11 - Prob. 8TYUCh. 11 - Prob. 9TYUCh. 11 - Prob. 10TYUCh. 11 - In tigers, a recessive allele that is pleiotropic...Ch. 11 - Prob. 12TYUCh. 11 - Imagine that you are a genetic counselor, and a...Ch. 11 - Prob. 15TYUCh. 11 - Prob. 16TYUCh. 11 - Prob. 17TYU
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- Suppose meiotic drive affects the pollen only and that 80% of the pollen grains from a heterozygote carry the A allele. Ovules are normal, and 50% of them carry the A allele. What fraction of offspring from a selfing heterozygote will be heterozygous?arrow_forwardWhat would be the effect on flowering time of over-expressing VIN3 (i.e., 35S:VIN3) in a winter annual Arabidopsis plant grown adjacent to a summer annual wild type plant in long days under warm conditions? Assume that the plants germinate at the same time. In answering the question, describe the molecular mechanism that allows you to make this conclusion.arrow_forwardA scientist pollinates a true-breeding pea plant with violet, terminal flowers with pollen from a true- breeding pea plant with white, axial flowers. Which of the following observations would most accurately describe the F2 generation? 75% violet flowers; 75% terminal flowers 75% white flowers in a terminal position 75% violet flowers; 75% axial flowers 75% violet flowers in an axial positionarrow_forward
- Predict the outcome of reproductive crosses between red- and white-flowered plants using th generative fluid theory.arrow_forwardPlants reproduce through various methods. Explain which method helps to create genetic variability in crop plants? Moreover elaborate mechanisms promoting self or cross pollination.arrow_forwardPlease answer question 2arrow_forward
- Can you answer all the parts to this question regarding the diagramarrow_forwardexplain the following:P→ Parental generation.G → Gametes.F1→ First filial generation.F2→ Second filial generationGenotype (F2 (Phenotype (F2) I chose Stem lengtharrow_forwardDon't use Ai and chatgpt Answer in step by step with explanation.arrow_forward
- list all gamets that could be made by a pea plant heterozygous for seed colour, seed shape and pod shape(Yy, Rr, Ii) what size punnett square would you need to determine offspring of self pollination of this hybridarrow_forwardA. What is double fertilization? B. What are the products of double fertilization? C. Explain the following quote “As an individual, the endosperm is unique as it has three ancestors and never leaves any descendants.” What are the three ancestors referred to in this quote? And why endosperm does not leave any descendants?arrow_forwardDiagram of alternation of genertaion I = zygote (2n) II = sporophyte Y = fertilization? But can I have some help to confirm about hte rest?arrow_forward
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