In a cross of a DDRR individual with a ddrr individual, the genotype of all offspring will ____

a. DDRR
b. DdRR
c. DdRr
d. ddRR
e. ddRr


ANSWER: c

Biology & Microbiology

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Which of the following statements describes the hypothesis proposed to explain the regular arrangement of leaves around the stem?

A. Primordia are pre-programmed to grow in a set arrangement. B. Primordia are unable to communicate. C. Chemical signals from developing leaf primordia create regions preventing new primordial growth. D. Developing leaf primordia physically block new primordial. E. We do not currently have a hypothesis to explain how these growth patterns occur.

Biology & Microbiology

What type of thinking is required?

What will be an ideal response?

Biology & Microbiology

Which numbered item in the figure above represents a female gametophyte?

a. 1 b. 2 c. 3 d. 4 e. 5

Biology & Microbiology

In what order do sperm move through the structures of the female reproductive tract?

A. ovary; oviduct; uterus; vagina B. cervix; vagina; uterus; oviduct C. vagina; uterus; oviduct; ovary D. vagina; cervix; uterus; oviduct E. endometrium; cervix; uterus; oviduct

Biology & Microbiology